Perhaps you should try some spelling variations:
thanh tay » thanh tai, thanh toan, thanh thuy
khanh ty » khanh ly, khanh tra, khanh duy
su triet » su viet, su tien, ve triet
mai hoi » mai khoi, dai hoi, lai hoi
hieu ve » hieu va, hieu van
cam luc » cam xuc, cau luc
va hanh » van hanh, va thanh, va danh
hanh va » hang va, hanh vi
ma hoi » xa hoi, ma hoa, me hoi
ve cam » ve cham, ve cac, va cam
luc va » duc va, tuc va, loc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu ((khanh ty) OR (thanh tay)) tang ((ma hoi) or (mai hoi)). hieu ve cam luc va hanh va su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu ((khanh ty) OR (thanh tay)) tang ((ma hoi) OR (mai hoi)). hieu ve cam luc va hanh va su triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu ((khanh ty) OR (thanh tay)) tang ((ma hoi) or (mai hoi)). hieu ve cam luc va hanh va su triet*".