Perhaps you should try some spelling variations:
cua thuoc » nha thuoc, cay thuoc, cua nuoc
van hanh » van thanh, ban hanh, van anh
cach tu » cach thuc
nang ma » tang ma, sang ma, nang cao
sach tu » sach thu, sach ty, sach uu
hieu ve » hieu va, hieu van
cac xuc » cam xuc, cac nuoc, chat xuc
xuc van » duc van, luc van, vuc van
ma hoi » mai hoi, xa hoi, ma hoa
ve cac » va cac, vien cac
cua tu » cua tuc, cua su, cua cu

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 tu) or (cach tu)) nang ma hoi. hieu ve cac xuc van hanh vi ((cua tu) or (cua thuoc))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sach tu) OR (cach tu)) nang ma hoi. hieu ve cac xuc van hanh vi ((cua tu) OR (cua thuoc)).
• Adding a wildcard symbol may retrieve word variants: te ((sach tu) or (cach tu)) nang ma hoi. hieu ve cac xuc van hanh vi ((cua tu) or (cua thuoc))*.