Perhaps you should try some spelling variations:
cua viet » ca viet, hoa viet, cua vat
hieu van » hieu va, thien van, lieu va
thi nang » thi cong, ki nang
thi hanh » thi thanh
duc tuan » duc thuan, duc tan, duc toan
cham duc » pham duc, cham soc, pham duy
lai cua » dai cua, hai cua, lai chau
anh lai » anh bai, anh tai, gianh lai
te sach » toc sach
hieu ve » hieu va
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 ((thi nang) or (thi hanh)) x hoi. ((hieu ve) or (hieu van)) cham duc tuan anh lai cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((thi nang) OR (thi hanh)) x hoi. ((hieu ve) OR (hieu van)) cham duc tuan anh lai cua viet.
• Adding a wildcard symbol may retrieve word variants: te sach ((thi nang) or (thi hanh)) x hoi. ((hieu ve) or (hieu van)) cham duc tuan anh lai cua viet*.