Perhaps you should try some spelling variations:
lang van » dang van, tang van, hoang van
dang xay » dang van, van xay
te sach » toc sach
duc gia » quoc gia
ve pham » vi pham, v pham, ve phan
hieu ve » hieu va, hieu van
sach ty » sach y, sach tu, sach thu
cuu tre » cua tre, cau tren, cau treo
anh vi » anh va, anh ve, anh vu

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 ty ((lang van) or (dang xay)) hoi. hieu ve pham duc gia ((anh vi) OR (hanh vi)) cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty ((lang van) OR (dang xay)) hoi. hieu ve pham duc gia ((anh vi) OR (hanh vi)) cuu tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ty ((lang van) or (dang xay)) hoi. hieu ve pham duc gia ((anh vi) OR (hanh vi)) cuu tre*".