Perhaps you should try some spelling variations:
nam truc » nam truoc, nam thuc, nam trung
te sach » toc sach
tu sach » thu sach, su sach, tu cach
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
truc va » thuc va, thuc vat, trung va
va hanh » van hanh, va thanh, va danh
hai cua » thai cua, dai cua, hoi cua
ve nam » he nam, va nam, le nam
vi cua » vai cua, di cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((te sach) or (tu sach)) ky nang xa hoi. hieu ve nam truc va hanh ((vi cua) or (hai cua)) te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (tu sach)) ky nang xa hoi. hieu ve nam truc va hanh ((vi cua) OR (hai cua)) te.
• Adding a wildcard symbol may retrieve word variants: ((te sach) or (tu sach)) ky nang xa hoi. hieu ve nam truc va hanh ((vi cua) or (hai cua)) te*.