Perhaps you should try some spelling variations:
tham tang » nham tang, thai tang, tham lang
sach tham » sach nha
su sach » so sach, vu sach
cuu tre » cau tren, cau treo
thuc va » thuc vat, thuc dan, thuc day
truc va » thuc vat, trung va
tang ma » mang may, tang van
hieu va » lieu va, hieu qua
cua tre » cua te, cua triet, dua tren
va hau » van hau, va chau, vat hau
ma hoi » mai hoi, xa hoi, ma hoa

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach tham tang ma hoi. hieu va hau ((truc va) or (thuc va)) hanh vi ((cuu tre) or (cua tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach tham tang ma hoi. hieu va hau ((truc va) OR (thuc va)) hanh vi ((cuu tre) OR (cua tre)).
• Adding a wildcard symbol may retrieve word variants: su sach tham tang ma hoi. hieu va hau ((truc va) or (thuc va)) hanh vi ((cuu tre) or (cua tre))*.