Perhaps you should try some spelling variations:
dang xay » dang van, van xay
thuc van » thuc dan, thuc va, thuc hanh
te sach » toc sach
xay hoi » xa hoi, tay hoi, cay phoi
hieu le » hieu he, hieu ly, tieu le
hieu ve » hieu va, hieu van
y dang » ky dang, 2 dang, _ dang
vi cua » vai cua, di cua
cua tu » cua tuc, cua su, cua cu

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 hoi. ((hieu le) OR (hieu ve)) nam ((thuc van) or (thuc vat)) hanh vi cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y dang xay hoi. ((hieu le) OR (hieu ve)) nam ((thuc van) OR (thuc vat)) hanh vi cua tu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y dang xay hoi. ((hieu le) OR (hieu ve)) nam ((thuc van) or (thuc vat)) hanh vi cua tu".
• Adding a wildcard symbol may retrieve word variants: te sach y dang xay hoi. ((hieu le) OR (hieu ve)) nam ((thuc van) or (thuc vat)) hanh vi cua tu*.