Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
thuat lap » thuat lanh, thuat xay, thuat bai
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
cao suc » cao su, cao duc
va hanh » van hanh, va thanh, va danh
tai cua » thai cua, tri cua, dai cua
ve cao » va cao, ve bao, ve cac
suc va » duc va, tuc va, luc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((thuat sach) or (thuat lap)) ky nang xa hoi. hieu ve cao suc va hanh ((tai cua) OR (tai cuc)) te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thuat sach) OR (thuat lap)) ky nang xa hoi. hieu ve cao suc va hanh ((tai cua) OR (tai cuc)) te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((thuat sach) or (thuat lap)) ky nang xa hoi. hieu ve cao suc va hanh ((tai cua) OR (tai cuc)) te".
• Adding a wildcard symbol may retrieve word variants: ((thuat sach) or (thuat lap)) ky nang xa hoi. hieu ve cao suc va hanh ((tai cua) OR (tai cuc)) te*.