Perhaps you should try some spelling variations:
va thanh » gia thanh, ban thanh, va tinh
thanh vi » hanh vi, thanh va, thanh ve
cua tre » cuu tre, cua triet, dua tren
nang ma » tang ma, sang ma, nang cao
hieu va » lieu va, hieu qua
sach ky » sach y, sach ty, sach kem
cam luc » cam xuc, cau luc
va cam » va cham, va cac, va cao
luc va » duc va, tuc va, loc va
sac ky » cac ky, sai ky
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu ((sach ky) or (sac ky)) nang ma hoa. hieu va cam luc va thanh vi ((cua tre) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach ky) OR (sac ky)) nang ma hoa. hieu va cam luc va thanh vi ((cua tre) OR (cua te)).
• Adding a wildcard symbol may retrieve word variants: tu ((sach ky) or (sac ky)) nang ma hoa. hieu va cam luc va thanh vi ((cua tre) or (cua te))*.