Perhaps you should try some spelling variations:
hanh vai » hanh vi, hanh va, hanh tai
sang tao » hang tai
sanh thu » sach thu, san thu, doanh thu
so sanh » do sanh
vai cua » dai cua, hai cua, lai cua
thuc va » thuc vat, thuc dan, thuc day
chuc va » thuc vat
ve phan » va phan, ke phan, ve phat
hieu ve » hieu va, hieu van
sang ma » tang ma, nang ma, mang may
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: so sanh thu ((sang ma) or (sang tao)) hoi. hieu ve phan ((chuc va) OR (thuc va)) hanh vai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sanh thu ((sang ma) OR (sang tao)) hoi. hieu ve phan ((chuc va) OR (thuc va)) hanh vai cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sanh thu ((sang ma) or (sang tao)) hoi. hieu ve phan ((chuc va) OR (thuc va)) hanh vai cua te".
• Adding a wildcard symbol may retrieve word variants: so sanh thu ((sang ma) or (sang tao)) hoi. hieu ve phan ((chuc va) OR (thuc va)) hanh vai cua te*.