Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hanh lai » hanh lam, hanh tai, thanh lap
van hanh » van thanh, ban hanh, van anh
toc sach » hoc sach, doc sach, thuoc sach
hieu va » hieu qua
sach ty » sach y, sach tu, sach thu
cac xuc » cam xuc, cac nuoc, chat xuc
xuc van » duc van, luc van, vuc van
nang ma » tang ma, sang ma, nang cao
ty nang » ky nang, ty xang, ty hang
ma hoi » mai hoi, xa hoi, ma hoa
cua tu » cua tuc, cua su, cua cu

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach ty nang ma hoi. ((hieu va) OR (lieu va)) cac xuc van hanh lai ((cua tu) OR (cua triet))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc sach ty nang ma hoi. ((hieu va) OR (lieu va)) cac xuc van hanh lai ((cua tu) or (cua triet))~".
• Adding a wildcard symbol may retrieve word variants: toc sach ty nang ma hoi. ((hieu va) OR (lieu va)) cac xuc van hanh lai ((cua tu) or (cua triet))*.