Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
te sach » toc sach
doan vi » doan va, don vi, doan thi
va doan » va doanh, van doan, va dan
cac luc » cau luc, coc luc, cac nuoc
hieu ve » hieu va, hieu van
ly nang » ky nang, ly hang, ly vang
luy tre » luyen tre
ve cac » va cac, vien cac
y nang » ky nang, v nang, may nang
luc va » duc va, tuc va, loc 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 ((y nang) or (ly nang)) x hoi. hieu ve cac luc va doan vi ((cua triet) or (luy tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((y nang) OR (ly nang)) x hoi. hieu ve cac luc va doan vi ((cua triet) OR (luy tre)).
• Adding a wildcard symbol may retrieve word variants: te sach ((y nang) or (ly nang)) x hoi. hieu ve cac luc va doan vi ((cua triet) or (luy tre))*.