Perhaps you should try some spelling variations:
dinh thi » dinh tri
tu sach » thu sach, su sach, te sach
xay hoi » xa hoi, tay hoi, cay phoi
cac tuc » cac toc, cac tu, cac tac
cac dac » cac dan, cac dai, cac bac
va dinh » van dinh, va kinh, va tinh
thi cua » thai cua, thi cuc, tri cua
cua tre » cua te, cuu tre, cua triet
y dang » ky dang, 2 dang, b dang
_ dang » _ dan, 2 dang, _ danh

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ((y dang) OR (_ dang)) xay hoi. lieu va ((cac tuc) OR (cac dac)) va dinh thi cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ((y dang) OR (_ dang)) xay hoi. lieu va ((cac tuc) OR (cac dac)) va dinh thi cua tre".
• Adding a wildcard symbol may retrieve word variants: tu sach ((y dang) OR (_ dang)) xay hoi. lieu va ((cac tuc) OR (cac dac)) va dinh thi cua tre*.