Perhaps you should try some spelling variations:
cua viet » ca viet, hoa viet, cua vat
hieu van » hieu va, thien van, lieu va
danh sai » dung sai, danh bat, danh dau
hanh tai » thanh tai, hang tai, han tai
van chat » cao chat
chat soc » cham soc, chat hoc, chat doc
tu sach » thu sach, su sach, te sach
soc va » hoc va, loc va, doc va
tu sac » tu cac, tu san, tu bac
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: ((tu sac) or (tu sach)) ky nang x hoi. hieu van chat soc va ((hanh tai) or (danh sai)) cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sac) OR (tu sach)) ky nang x hoi. hieu van chat soc va ((hanh tai) OR (danh sai)) cua viet.
• Adding a wildcard symbol may retrieve word variants: ((tu sac) or (tu sach)) ky nang x hoi. hieu van chat soc va ((hanh tai) or (danh sai)) cua viet*.