Perhaps you should try some spelling variations:
dang xay » dang van, van xay
quoc ban » quoc bao, quoc lan, quoc quan
te sach » toc sach
xay hoi » xa hoi, tay hoi, cay phoi
quoc ba » quoc bao, quoc va, quoc ha
y dang » ky dang, 2 dang, _ dang
va lam » van lam, va lap
te cua » tue cua, le cua
de cua » le cua, dieu 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 hoi. lieu va lam ((quoc ba) or (quoc ban)) benh ((te cua) OR (de cua)) te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y dang xay hoi. lieu va lam ((quoc ba) OR (quoc ban)) benh ((te cua) OR (de cua)) te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y dang xay hoi. lieu va lam ((quoc ba) or (quoc ban)) benh ((te cua) OR (de cua)) te".
• Adding a wildcard symbol may retrieve word variants: te sach y dang xay hoi. lieu va lam ((quoc ba) or (quoc ban)) benh ((te cua) OR (de cua)) te*.