Perhaps you should try some spelling variations:
thanh hai » thanh phan, thanh hoa, thanh san
ban thanh » ban hanh, ban hang
va triet » va thiet, va trien, ve triet
hang dau » hang va, hang tai
xuc ban » duc ban, cuc ban, quoc ban
su sach » so sach
van dau » van dao, phan dau
nang xa » nang x, lang xa, nang ma
vu sach » vu bach, vu khach
hai va » hai van, thai va, hoi va

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((su sach) OR (vu sach)) ky nang xa hoi. hieu ((van dau) or (hang dau)) xuc ban thanh hai va triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (vu sach)) ky nang xa hoi. hieu ((van dau) OR (hang dau)) xuc ban thanh hai va triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) OR (vu sach)) ky nang xa hoi. hieu ((van dau) or (hang dau)) xuc ban thanh hai va triet*".