Perhaps you should try some spelling variations:
thu nang » thi nang, thu hang, thu bang
nang mai » nang ma, nang tai, lang mai
hanh vai » hanh vi, hanh va, hanh tai
so sach » bo sach, co sach, hoc sach
thuc va » thuc dan, thuc day
vai cua » dai cua, hai cua, lai cua
so sanh » do sanh
mai hoi » mai khoi, dai hoi, lai hoi
hieu v » hieu va, hieu ve, hieu 2
v pham » vi pham, d pham
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 sach) OR (so sanh)) thu nang mai hoi. hieu v pham ((thuc vat) or (thuc va)) hanh vai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((so sach) OR (so sanh)) thu nang mai hoi. hieu v pham ((thuc vat) OR (thuc va)) hanh vai cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((so sach) OR (so sanh)) thu nang mai hoi. hieu v pham ((thuc vat) or (thuc va)) hanh vai cua te".
• Adding a wildcard symbol may retrieve word variants: ((so sach) OR (so sanh)) thu nang mai hoi. hieu v pham ((thuc vat) or (thuc va)) hanh vai cua te*.