Perhaps you should try some spelling variations:
thanh do » thanh pho, thanh hoa, thanh loi
nam thuc » nam thuoc, am thuc, nam thu
thuc dan » thuc hanh, hoc dan, thuc vat
thanh de » hanh de, thanh ve, thanh le
cach tu » cach thuc
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
sach tu » sach thu, sach ty, sach uu
ve nam » he nam, va nam, le nam
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: vu ((sach tu) OR (cach tu)) nang xa hoi. hieu ve nam thuc dan ((thanh de) or (thanh do)) cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu ((sach tu) OR (cach tu)) nang xa hoi. hieu ve nam thuc dan ((thanh de) OR (thanh do)) cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu ((sach tu) OR (cach tu)) nang xa hoi. hieu ve nam thuc dan ((thanh de) or (thanh do)) cua te".
• Adding a wildcard symbol may retrieve word variants: vu ((sach tu) OR (cach tu)) nang xa hoi. hieu ve nam thuc dan ((thanh de) or (thanh do)) cua te*.