Perhaps you should try some spelling variations:
hanh hai » thanh hai, nhanh hai, hang hai
te sach » toc sach
va hanh » van hanh, va thanh, va danh
cam luc » cam xuc, cau luc
hieu ve » hieu va, hieu van
mai hoi » mai khoi, dai hoi, lai hoi
sach v » sach va, sach y, sach 2
ve cam » ve cham, ve cac, va cam
luc va » duc va, tuc va, loc va
ma hoi » xa hoi, ma hoa, me hoi
v nang » va nang, vu nang, van nang
cua tu » cua tuc, cua su, cua cu

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 v nang ((ma hoi) or (mai hoi)). hieu ve cam luc va hanh hai ((cua te) OR (cua tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach v nang ((ma hoi) OR (mai hoi)). hieu ve cam luc va hanh hai ((cua te) OR (cua tu)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach v nang ((ma hoi) or (mai hoi)). hieu ve cam luc va hanh hai ((cua te) OR (cua tu))".
• Adding a wildcard symbol may retrieve word variants: te sach v nang ((ma hoi) or (mai hoi)). hieu ve cam luc va hanh hai ((cua te) OR (cua tu))*.