Perhaps you should try some spelling variations:
hieu thuoc » hieu thuc, lieu thuoc, bien thuoc
hieu duoc » hiem duoc, hieu luc, bien duoc
ban hanh » ban hang
chat xuc » chat huu, cam xuc, chao xu
va trien » va truyen, va thiet, va tuyen
nang xa » nang x, lang xa, nang ma
su sach » so sach, vu sach
sach v » sach va, sach y, sach 2
v nang » va nang, vu nang, van nang
va va » va van, va vua, va vai

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 v nang xa hoi. ((hieu duoc) or (hieu thuoc)) chat xuc ((van ban) or (ban hanh)) va va trien~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach v nang xa hoi. ((hieu duoc) OR (hieu thuoc)) chat xuc ((van ban) OR (ban hanh)) va va trien.
• Adding a wildcard symbol may retrieve word variants: su sach v nang xa hoi. ((hieu duoc) or (hieu thuoc)) chat xuc ((van ban) or (ban hanh)) va va trien*.