Perhaps you should try some spelling variations:
vat thanh » dat thanh, gat thanh, tat thanh
van hanh » van thanh, ban hanh, van anh
na thuoc » nha thuoc, nam thuoc, va thuoc
cua tuc » cua duc, cua tu, cua thuoc
nang ma » tang ma, sang ma, nang cao
hieu le » hieu ve, hieu he, hieu ly
sac ky » cac ky, sai ky
ma hoi » mai hoi, xa hoi, ma hoa
cua te » cua tu
vu sac » vu sach, vu san, va sac
le na » le nam, le va, le ta

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu sac ky nang ma hoi. hieu le na thuoc ((van hanh) or (vat thanh)) vi ((cua te) or (cua tuc))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sac ky nang ma hoi. hieu le na thuoc ((van hanh) OR (vat thanh)) vi ((cua te) OR (cua tuc)).
• Adding a wildcard symbol may retrieve word variants: vu sac ky nang ma hoi. hieu le na thuoc ((van hanh) or (vat thanh)) vi ((cua te) or (cua tuc))*.