Perhaps you should try some spelling variations:
lang chai » lang ha, lang cua, lang phi
tay dang » tay dong, tay dung, tay lang
tac dung » sach dung, xay dung, tin dung
chai cua » chat cua, thai cua, chi cua
tu sach » thu sach, su sach, te sach
hieu ve » hieu va, hieu van
cac tuc » cac toc, cac tu, cac tac
va lang » va nang, hoa lang
ve cac » va cac, vien cac
tuc va » thuc va, truc va, tuc xa
cua te » cua tu

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ((tay dang) or (tac dung)) xa hoi. hieu ve cac tuc va lang chai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((tay dang) OR (tac dung)) xa hoi. hieu ve cac tuc va lang chai cua te.
• Adding a wildcard symbol may retrieve word variants: tu sach ((tay dang) or (tac dung)) xa hoi. hieu ve cac tuc va lang chai cua te*.