Perhaps you should try some spelling variations:
thanh tai » thanh hai, thanh toan, doanh tai
ban thanh » ban hanh, ban hang
hieu van » hieu va, thien van, lieu va
tu sach » thu sach, su sach, tu cach
xuc ban » duc ban, cuc ban, quoc ban
hieu ve » hieu va
hang xa » hoang xa, hang va, hang ca
tu hang » thu hang, tu hanh, tu hung
te sach » toc sach
tai cau » tai cac, tai cao

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu sach) or (te sach)) tu hang xa hoi. ((hieu ve) OR (hieu van)) cam xuc ban thanh tai cau tao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (te sach)) tu hang xa hoi. ((hieu ve) OR (hieu van)) cam xuc ban thanh tai cau tao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) or (te sach)) tu hang xa hoi. ((hieu ve) OR (hieu van)) cam xuc ban thanh tai cau tao".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (te sach)) tu hang xa hoi. ((hieu ve) OR (hieu van)) cam xuc ban thanh tai cau tao*.