Perhaps you should try some spelling variations:
xuan tuan » xuan thuan, xuan toan, xuan tan
cac xuan » cao xuan, cac xuat, dac xuan
tu sach » thu sach, su sach, tu cach
thi cuc » tai cuc
anh thi » anh tho, dinh thi, dang thi
hieu ve » hieu va, hieu van
cuc tre » duc tre, cua tre, cuu tre
te sach » toc sach
ve cac » va cac, vien cac
co hai » co dai, co hoi, o hai
o hoc » co hoc, mo hoc, so hoc

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) or (te sach)) ky nang ((o hoc) or (co hai)). hieu ve cac xuan tuan anh thi cuc tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (te sach)) ky nang ((o hoc) OR (co hai)). hieu ve cac xuan tuan anh thi cuc tre.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (te sach)) ky nang ((o hoc) or (co hai)). hieu ve cac xuan tuan anh thi cuc tre*.