Perhaps you should try some spelling variations:
thanh phan » thanh pho, thanh san, thanh toan
nganh xay » nganh mac, nganh y, nganh ma
thanh van » thanh san, thanh toan, thanh nhan
ky nganh » ky nang, ly ngan, k ngan
chat xuc » chat huu, cam xuc, chao xu
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 ve » hieu va, hieu van
ve chat » va chat, van chat
huy tre » huy tri, luy tre, huy tran
xuc va » duc va, tuc va, luc va

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