
There is no
--lang Tagalog option because TMDB does not support
tl-PH as site language. The issue at hand is notably
unrelated to whichever value you pass in as
--lang option. The default
--lang English would work just fine in this case, if the movie entry were to be valid.

FileBot does not list this movie particular movie regardless of language in the search result list because nobody has added a release date yet:
Console Output: Select all
$ filebot -list --q "Ang Abnormal Nga Tubo" --db TheMovieDB
Missing data: release_date: {"adult":false,"backdrop_path":null,"genre_ids":[],"id":1313037,"original_language":"tl","original_title":"Ang Abnormal Nga Tubo","overview":"Joana, a cancer-stricken mother, believes that her breast cancer is part of God’s plan. Clyde, a gay-stricken Christian, thinks otherwise. A visit to the dinosaurs at a local amusement park together with her six-year-old son, Moises, prompts a reflection on the differences in their faith.","popularity":0.442,"poster_path":"/po5ezjtmI8IzDZzSdf2wsxYcAyf.jpg","release_date":"","title":"The Abnormal Growth","video":false,"vote_average":0.0,"vote_count":0}
No search results

If you complete the movie entry
(i.e. fill in the missing release date at the very least) then things will start working.
(NOTE: after a few days; due to caching)