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
hanh va » hang va, hanh vi
va hanh » van hanh, va thanh, va danh
va cua » va chua, via cua, ca cua
tuc va » thuc va, truc va, tuc xa
cua te » cua tu
ve cac » va cac, vien cac
ve cao » va cao, ve bao, ve co

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) OR (ve cac)) tuc va hanh va cua 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) OR (ve cac)) tuc va hanh va cua 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) OR (ve cac)) tuc va hanh va cua te".
• Adding a wildcard symbol may retrieve word variants: ((thuat sach) or (thuat lap)) ky nang xa hoi. hieu ((ve cao) OR (ve cac)) tuc va hanh va cua te*.