Perhaps you should try some spelling variations:
nam thuc » nam thuoc, am thuc, nam thu
vu khac » vu kham, vu khanh, bui khac
khac ty » khac thi
thuc va » thuc vat, thuc dan, thuc day
va tinh » may tinh
tinh vi » trinh vi, tinh voi, tinh va
ty ang » ty xang, ty hang, ty anh
ang xa » lang xa, mang xa, dang xay
va nam » van nam, ha nam, va nay
cua tu » cua tuc, cua cu, cua te
cua su » qua su

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu khac ty ang xa hoi. lieu va nam thuc va tinh vi ((cua tu) or (cua su))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu khac ty ang xa hoi. lieu va nam thuc va tinh vi ((cua tu) OR (cua su)).
• Adding a wildcard symbol may retrieve word variants: vu khac ty ang xa hoi. lieu va nam thuc va tinh vi ((cua tu) or (cua su))*.