Perhaps you should try some spelling variations:
cua triet » su triet, va triet
thien van » thi van
cua viet » ca viet, hoa viet, cua vat
thanh vi » hanh vi, thanh va, nhanh vi
thanh ve » hanh ve, thanh va, thanh vien
nang ma » tang ma, sang ma, nang cao
te sach » toc sach
tru va » truc va, tu va, trung va
y nang » ky nang, ly nang, v nang
van ca » van cau, van cua, dan ca
ma hoi » mai hoi, xa hoi, ma hoa

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 ma hoi. thien van ca tru va ((thanh vi) or (thanh ve)) ((cua triet) or (cua viet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y nang ma hoi. thien van ca tru va ((thanh vi) OR (thanh ve)) ((cua triet) OR (cua viet)).
• Adding a wildcard symbol may retrieve word variants: te sach y nang ma hoi. thien van ca tru va ((thanh vi) or (thanh ve)) ((cua triet) or (cua viet))*.