Perhaps you should try some spelling variations:
xang xay » dang xay, van xay, xang dau
te sach » toc sach
tinh ve » trinh ve, tinh ven, dinh ve
thuc va » thuc vat, thuc dan, thuc day
thue va » thuyet va, thuc vat, thuat va
ve cuoc » va cuoc, ve duoc, ve nuoc
sach ty » sach y, sach tu, sach thu
xay hoi » xa hoi, tay hoi, cay phoi
ve suc » va suc, ve su
ve cua » le cua, de cua, te 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 ty xang xay hoi. hieu ((ve suc) or (ve cuoc)) ((thue va) OR (thuc va)) tinh ve cua vat~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty xang xay hoi. hieu ((ve suc) OR (ve cuoc)) ((thue va) OR (thuc va)) tinh ve cua vat.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ty xang xay hoi. hieu ((ve suc) or (ve cuoc)) ((thue va) OR (thuc va)) tinh ve cua vat".
• Adding a wildcard symbol may retrieve word variants: te sach ty xang xay hoi. hieu ((ve suc) or (ve cuoc)) ((thue va) OR (thuc va)) tinh ve cua vat*.