Perhaps you should try some spelling variations:
cua viet » ca viet, hoa viet, cua vat
xang xay » dang xay, van xay, xang dau
tinh ve » trinh ve, tinh ven, dinh ve
thue va » thuc va, thuc vat, thuat va
te sach » toc sach
sach ty » sach y, sach tu, sach thu
xay hoi » xa hoi, tay hoi, cay phoi
ve cuc » ve cuoc, ve suc, ve cum
ve cua » le cua, de cua, te cua
ve cac » va cac, vien cac

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 xang xay hoi. hieu ((ve cuc) or (ve cac)) ((thue va) OR (thuyet va)) tinh ve cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty xang xay hoi. hieu ((ve cuc) OR (ve cac)) ((thue va) OR (thuyet va)) tinh ve cua viet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ty xang xay hoi. hieu ((ve cuc) or (ve cac)) ((thue va) OR (thuyet va)) tinh ve cua viet".
• Adding a wildcard symbol may retrieve word variants: te sach ty xang xay hoi. hieu ((ve cuc) or (ve cac)) ((thue va) OR (thuyet va)) tinh ve cua viet*.