Perhaps you should try some spelling variations:
thanh tai » thanh hai, thanh toan, doanh tai
van thanh » ban thanh, van tuan
hieu van » hieu va, thien van, lieu va
cao suc » cao su, cao duc
tu sach » thu sach, te sach, tu cach
nang xa » nang x, lang xa, nang ma
ly nang » ky nang, ly hang, ly vang
su sach » so sach, vu sach
cuc te » cua te, cuc thue, cuc tieu

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 (su sach)) ly nang xa hoi. hieu van ((pham duc) or (cao suc)) van thanh tai cuc te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (su sach)) ly nang xa hoi. hieu van ((pham duc) OR (cao suc)) van thanh tai cuc te.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (su sach)) ly nang xa hoi. hieu van ((pham duc) or (cao suc)) van thanh tai cuc te*.