Perhaps you should try some spelling variations:
thuat sac » thuat sach, thuat san, thuat tac
thien van » thi van
hang tai » hang va, dung tai
cau phuc » cau truc, chau phu, huu phuc
tai cua » thai cua, tai cuc, tri cua
va hang » van hang, va nang, va lang
phuc va » phuc vu, thuc va, chuc va
hieu ve » hieu va, hieu van
sac ky » cac ky, sai ky
ma hoi » mai 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: thuat sac ky nang ((ma hoi) OR (xa hoi)). ((hieu ve) or (thien van)) cau phuc va hang tai cua 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 cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat sac ky nang ((ma hoi) OR (xa hoi)). ((hieu ve) or (thien van)) cau phuc va hang tai cua 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 cua te*.