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

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 cam xuc ban ((thanh tai) OR (thanh toan)) cao 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 cam xuc ban ((thanh tai) OR (thanh toan)) cao 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 cam xuc ban ((thanh tai) OR (thanh toan)) cao tao".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (te sach)) tu hang xa hoi. hieu ve cam xuc ban ((thanh tai) OR (thanh toan)) cao tao*.