Perhaps you should try some spelling variations:
dinh thi » dinh tri
cua dinh » cua sinh, cua tinh, cua kinh
xach tay » canh tay
sach han » sach tham, sach danh, sach nang
sach hay » sach ha, sach nay, sach vay
lang xa » lang ha, dang xay, lang van
hieu va » lieu va, hieu qua
lam luc » lao luc, lam duoc
luc cua » luc chua, luc nua, tuc cua
va lam » van lam, va lap
thi du » thi dua, thi dau, thi diu
du tre » duc tre, du tru, dua tren

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu ((xach tay) or (((sach hay) or (sach han)))) lang xa hoi. hieu va lam luc cua dinh thi du tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu ((xach tay) OR (((sach hay) OR (sach han)))) lang xa hoi. hieu va lam luc cua dinh thi du tre.
• Adding a wildcard symbol may retrieve word variants: thu ((xach tay) or (((sach hay) or (sach han)))) lang xa hoi. hieu va lam luc cua dinh thi du tre*.