Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
dang xay » dang van, van xay
cuu ban » cuu van, cua ban, cuu san
cuc ban » cua ban, cac ban, duc ban
van lam » van nam
te sach » toc sach
sach ky » sac ky, sach y, sach ty
lang xa » lang ha, lang van
cuu tre » cua tre, cau tren, cau treo
vi cuu » vi luu, vinh cuu

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