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