Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hanh tai » thanh tai, hang tai, han tai
van hanh » van thanh, ban hanh, van anh
cac luc » cau luc, coc luc, cac nuoc
luc van » luoc van, luu van, duc van
te sach » toc sach
hieu ve » hieu va, hieu van
ly nang » ky nang, ly hang, ly vang
y nang » ky nang, v nang, may nang
cua te » cua tu
ve cac » va cac, vien cac

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)) xa hoi. hieu ve cac luc van hanh tai ((cua te) or (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((y nang) OR (ly nang)) xa hoi. hieu ve cac luc van hanh tai ((cua te) OR (cua triet)).
• Adding a wildcard symbol may retrieve word variants: te sach ((y nang) or (ly nang)) xa hoi. hieu ve cac luc van hanh tai ((cua te) or (cua triet))*.