Perhaps you should try some spelling variations:
thien van » thi van
thuat sac » thuat sach, thuat san, thuat tac
hang tai » hang va, dung tai
cau phuc » cau truc, chau phu, huu phuc
va hang » van hang, va nang, va lang
phuc va » phuc vu, thuc va, chuc va
hieu ve » hieu va, hieu van
cuc te » cua te, cuc thue, cuc tieu
sac ky » cac ky, sai ky
ma hoi » mai hoi, ma hoa, me hoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuat sac ky nang ((ma hoi) or (xa hoi)). ((hieu ve) or (thien van)) cau phuc va hang tai cuc te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sac ky nang ((ma hoi) OR (xa hoi)). ((hieu ve) OR (thien van)) cau phuc va hang tai cuc te.
• Adding a wildcard symbol may retrieve word variants: thuat sac ky nang ((ma hoi) or (xa hoi)). ((hieu ve) or (thien van)) cau phuc va hang tai cuc te*.