Perhaps you should try some spelling variations:
thuc dan » thuc hanh, hoc dan, thuc vat
thu nang » thi nang, thu hang, thu bang
hanh vai » hanh vi, hanh va, hanh tai
vai cua » dai cua, hai cua, lai cua
thuc va » thuc vat, thuc day
hieu vi » hieu voi, hieu va, hieu ve
nang ma » tang ma, sang ma, nang cao
cua te » cua tu

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((so sanh) OR (do sanh)) thu nang ma hoa. hieu vi pham ((thuc va) OR (thuc dan)) hanh vai cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((so sanh) or (do sanh)) thu nang ma hoa. hieu vi pham ((thuc va) OR (thuc dan)) hanh vai cua te~".
• Adding a wildcard symbol may retrieve word variants: ((so sanh) or (do sanh)) thu nang ma hoa. hieu vi pham ((thuc va) OR (thuc dan)) hanh vai cua te*.