Perhaps you should try some spelling variations:
toc sach » hoc sach, doc sach, thuoc sach
hanh vai » hanh vi, hanh va, hanh tai
thuc va » thuc vat, thuc dan, thuc day
vai cua » dai cua, hai cua, lai cua
van cam » van nam, van lam, van cau
thi van » thi lan, thi hanh, thi nang
lang xa » lang ha, dang xay, lang van
xuc va » duc va, tuc va, luc va
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: ((te sach) or (toc sach)) _ lang xa hoi. thi van cam ((xuc va) or (thuc va)) hanh vai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (toc sach)) _ lang xa hoi. thi van cam ((xuc va) OR (thuc va)) hanh vai cua te.
• Adding a wildcard symbol may retrieve word variants: ((te sach) or (toc sach)) _ lang xa hoi. thi van cam ((xuc va) or (thuc va)) hanh vai cua te*.