Perhaps you should try some spelling variations:
thanh phan » thanh pho, thanh san, thanh toan
thanh van » thanh san, thanh toan, thanh nhan
nang xay » dang xay, nganh xay, nang xuan
chat tuc » chat xuc, luat tuc, chat huu
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
xay hoi » xa hoi, tay hoi, cay phoi
hieu va » lieu va, hieu qua
va chat » van chat, va phat, cao chat
huy tre » huy tri, luy tre, huy tran
tuc va » thuc va, truc va, tuc xa

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 ky nang xay hoi. hieu va chat tuc va ((thanh van) or (thanh phan)) huy tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky nang xay hoi. hieu va chat tuc va ((thanh van) OR (thanh phan)) huy tre.
• Adding a wildcard symbol may retrieve word variants: tu sach ky nang xay hoi. hieu va chat tuc va ((thanh van) or (thanh phan)) huy tre*.