Perhaps you should try some spelling variations:
thanh va » thanh van, hanh va, thanh ha
te sach » toc sach
lang xa » lang ha, dang xay, lang van
qua cao » qua cac, qua ca, qua cai
tuc gia » tac gia, toc gia, luc gia
duc gia » quoc gia
cuu tre » cua tre, cau tren, cau treo
y lang » o lang, _ lang, tay lang

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 y lang xa hoi. hieu qua cao ((tuc gia) OR (duc gia)) ((hanh vi) or (thanh va)) cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y lang xa hoi. hieu qua cao ((tuc gia) OR (duc gia)) ((hanh vi) OR (thanh va)) cuu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y lang xa hoi. hieu qua cao ((tuc gia) OR (duc gia)) ((hanh vi) or (thanh va)) cuu tre".
• Adding a wildcard symbol may retrieve word variants: te sach y lang xa hoi. hieu qua cao ((tuc gia) OR (duc gia)) ((hanh vi) or (thanh va)) cuu tre*.