Perhaps you should try some spelling variations:
van thanh » van tuan
ban thanh » ban hanh, ban hang
tai nang » thi nang, tai lang, dai nang
sach tai » sach bai, sach tham, sach dao
te sach » toc sach
cua cau » cua cac, cua cay, cua can
cac vuc » cac nuoc, cac vung, cac cuoc
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
cua chu » sua chua
ve cac » va cac, vien cac

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 tai nang xa hoi. hieu ve cac vuc ((van thanh) OR (ban thanh)) vai ((cua cau) or (cua chu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach tai nang xa hoi. hieu ve cac vuc ((van thanh) OR (ban thanh)) vai ((cua cau) OR (cua chu)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach tai nang xa hoi. hieu ve cac vuc ((van thanh) OR (ban thanh)) vai ((cua cau) or (cua chu))".
• Adding a wildcard symbol may retrieve word variants: te sach tai nang xa hoi. hieu ve cac vuc ((van thanh) OR (ban thanh)) vai ((cua cau) or (cua chu))*.