Perhaps you should try some spelling variations:
chet triet » chuyen triet, thuyet triet
thanh lap » thanh san, phan lap, thanh hai
va thanh » gia thanh, ban thanh, va tinh
te sach » toc sach
nang ma » tang ma, nang cao, mang may
sang ma » tang ma, sang tao, mang may
cam tuc » cam xuc, cam tu, nam thuc
va cam » va cham, va cac, va cao
tuc va » thuc va, truc va, tuc xa
phat » phan, pham, phap

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) or (sang ma)) hoi. lieu va cam tuc va thanh lap ((chet triet) or (phat trien))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y ((nang ma) OR (sang ma)) hoi. lieu va cam tuc va thanh lap ((chet triet) OR (phat trien)).
• Adding a wildcard symbol may retrieve word variants: te sach y ((nang ma) or (sang ma)) hoi. lieu va cam tuc va thanh lap ((chet triet) or (phat trien))*.