Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thanh van » thanh san, thanh toan, thanh phan
thanh te » thanh ve, thanh de, thanh le
luc van » luoc van, luu van, duc van
te sach » toc sach
hieu va » lieu va, hieu qua
cam luc » cam xuc, cau luc
y nang » ky nang, ly nang, may nang
va cam » va cham, va cac, va cao
v nang » va nang, vu nang, van nang

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 (v nang)) xa hoi. hieu va cam luc van ((thanh te) or (thanh van)) cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((y nang) OR (v nang)) xa hoi. hieu va cam luc van ((thanh te) OR (thanh van)) cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((y nang) OR (v nang)) xa hoi. hieu va cam luc van ((thanh te) or (thanh van)) cua triet".
• Adding a wildcard symbol may retrieve word variants: te sach ((y nang) OR (v nang)) xa hoi. hieu va cam luc van ((thanh te) or (thanh van)) cua triet*.