Perhaps you should try some spelling variations:
thi nang » ki nang, thi hanh
thi cong » tai cong, thien cong
luc ngan » luc nganh, luc nhan, luat ngan
te sach » toc sach
hieu ve » hieu va, hieu van
cac luc » cau luc, coc luc, cac nuoc
ve cac » va cac, vien cac
va cua » va chua, via cua, ca cua
cua cu » cua chu, cua cau, cua su
hang » dang, bang, hanh

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 cong)) xa hoi. hieu ve cac luc ngan hang va cua cu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((thi nang) OR (thi cong)) xa hoi. hieu ve cac luc ngan hang va cua cu.
• Adding a wildcard symbol may retrieve word variants: te sach ((thi nang) or (thi cong)) xa hoi. hieu ve cac luc ngan hang va cua cu*.