Perhaps you should try some spelling variations:
dang xay » dang van, van xay
hieu van » hieu va, thien van, lieu va
te sach » toc sach
nang ma » tang ma, sang ma, nang cao
van cau » van dau, van hau, van chat
cau tuc » cau truc, cau tu, cau luc
xa dinh » xac dinh, va dinh, ba dinh
dinh ve » dinh ket, dinh van
cuu tre » cua tre, cau tren, cau treo
ve cuu » ve cau, ve chu, ve cua

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 ((((dang xay) or (nang x))) or (nang ma)) hoi. hieu van cau tuc xa dinh ve cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y ((((dang xay) OR (nang x))) OR (nang ma)) hoi. hieu van cau tuc xa dinh ve cuu tre.
• Adding a wildcard symbol may retrieve word variants: te sach y ((((dang xay) or (nang x))) or (nang ma)) hoi. hieu van cau tuc xa dinh ve cuu tre*.