Perhaps you should try some spelling variations:
lang hai » lang chai, lang thai, lang ha
te sach » toc sach
hai cua » thai cua, dai cua, hoi cua
va lang » va nang, hoa lang
sach vu » sach va, sach tu, sach uu
mai hoi » mai khoi, dai hoi, lai hoi
vu nang » vuc nang, va nang, vu dang
ve cam » ve cham, va cam, ve cai
ve cac » va cac, vien cac
ma hoi » xa hoi, ma hoa, me hoi
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: te sach vu nang ((ma hoi) or (mai hoi)). hieu ((ve cam) OR (ve cac)) duc va lang hai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach vu nang ((ma hoi) OR (mai hoi)). hieu ((ve cam) OR (ve cac)) duc va lang hai cua te*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach vu nang ((ma hoi) or (mai hoi)). hieu ((ve cam) OR (ve cac)) duc va lang hai cua te*".