Perhaps you should try some spelling variations:
va thanh » gia thanh, ban thanh, le thanh
te sach » toc sach
sach ky » sac ky, sach y, sach ty
hieu va » lieu va, hieu qua
cac xuc » cam xuc, cac nuoc, chat xuc
va hanh » van hanh, va danh, ban hanh
va tinh » may tinh
dai huu » dao huu, dai hau, dai thua
huu tre » huu tri, cuu tre, huu them
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ky nang x hoi. hieu va cac xuc ((va hanh) or (((va thanh) OR (va tinh)))) dai huu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky nang x hoi. hieu va cac xuc ((va hanh) OR (((va thanh) OR (va tinh)))) dai huu tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky nang x hoi. hieu va cac xuc ((va hanh) or (((va thanh) OR (va tinh)))) dai huu tre*".