Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
doan truc » doan trung, xuan truc, doan tu
hanh lam » thanh lap, hanh kem, hanh va
dau truc » cau truc, dai truc, dau tu
cua tre » cua te, cuu tre, dua tren
va hanh » van hanh, va thanh, va danh
te sach » toc sach
hieu va » lieu va, hieu qua
nang ma » tang ma, sang ma, nang cao
y nang » ky nang, ly nang, v nang
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. hieu va ((dau truc) OR (doan truc)) va hanh lam ((cua tre) or (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y nang ma hoi. hieu va ((dau truc) OR (doan truc)) va hanh lam ((cua tre) OR (cua triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y nang ma hoi. hieu va ((dau truc) OR (doan truc)) va hanh lam ((cua tre) or (cua triet))".
• Adding a wildcard symbol may retrieve word variants: te sach y nang ma hoi. hieu va ((dau truc) OR (doan truc)) va hanh lam ((cua tre) or (cua triet))*.