Perhaps you should try some spelling variations:
hoc nganh » hoc nhanh
nam thuc » nam thuoc, am thuc, nam thu
ve triet » va trien, su triet
nang xa » nang x, nang ma, mang xa
lang xa » lang ha, dang xay, lang van
hieu ly » hieu ky, lieu ly, dieu ly
thuc va » thuc vat, thuc dan, thuc day
dau dai » dat dai, sau dai, dau da
va dau » va dao
dai ve » dap ve, dau ve, dai va

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc nganh y ((nang xa) or (lang xa)) hoi. hieu ly nam thuc va dau dai ve triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc nganh y ((nang xa) OR (lang xa)) hoi. hieu ly nam thuc va dau dai ve triet.
• Adding a wildcard symbol may retrieve word variants: hoc nganh y ((nang xa) or (lang xa)) hoi. hieu ly nam thuc va dau dai ve triet*.