Perhaps you should try some spelling variations:
sach tay » xach tay, sach hay, sach nay
tay lang » tai lang, tay tang, tay quang
van pham » san pham, van phan, van phat
van tham » van thanh, van tuan, van chat
te sach » toc sach
lang xa » lang ha, dang xay, lang van
va hanh » van hanh, va thanh, va danh
cua tre » cuu tre, cua triet, dua tren
doc va » duoc va, hoc va, duc 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 tay lang xa hoi. hieu ((van pham) or (van tham)) doc va hanh vi ((cua tre) OR (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach tay lang xa hoi. hieu ((van pham) OR (van tham)) doc va hanh vi ((cua tre) OR (cua te)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach tay lang xa hoi. hieu ((van pham) or (van tham)) doc va hanh vi ((cua tre) OR (cua te))".
• Adding a wildcard symbol may retrieve word variants: te sach tay lang xa hoi. hieu ((van pham) or (van tham)) doc va hanh vi ((cua tre) OR (cua te))*.