Perhaps you should try some spelling variations:
vat thanh » dat thanh, gat thanh, tat thanh
dang van » hoang van, hang va
nam thuc » nam thuoc, am thuc, nam thu
thanh vi » hanh vi, thanh va, thanh ve
lang xa » lang ha, dang xay, lang van
hieu le » hieu ve, hieu he, hieu ly
vu cac » va cac, tu cac, ve cac
le nam » ly nam, he nam, le na
vi cua » vai cua, di cua
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: vu cac ky ((lang xa) or (dang van)) hoi. hieu le nam thuc vat thanh vi cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu cac ky ((lang xa) OR (dang van)) hoi. hieu le nam thuc vat thanh vi cua tu.
• Adding a wildcard symbol may retrieve word variants: vu cac ky ((lang xa) or (dang van)) hoi. hieu le nam thuc vat thanh vi cua tu*.