Perhaps you should try some spelling variations:
hieu vien » hieu hien, hieu viec, thieu nien
cau tren » cu tren, ca tren, cau treo
minh vai » minh va, minh hai, minh ai
vien dai » hien dai
dau tren » dau tien, dat tren, dau tieng
vang mai » lang mai, sang mai, hoang mai
mai hoi » mai khoi, dai hoi, lai hoi
sach ly » sach lo, sach ty, sach hay
dai xuc » dai xu, dai luoc, dai thuc
xuc van » duc van, luc van, vuc van

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 ly) or (sach y)) vang mai hoi. hieu vien dai xuc van minh vai ((cau tren) OR (dau tren))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sach ly) OR (sach y)) vang mai hoi. hieu vien dai xuc van minh vai ((cau tren) OR (dau tren)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((sach ly) or (sach y)) vang mai hoi. hieu vien dai xuc van minh vai ((cau tren) OR (dau tren))".
• Adding a wildcard symbol may retrieve word variants: te ((sach ly) or (sach y)) vang mai hoi. hieu vien dai xuc van minh vai ((cau tren) OR (dau tren))*.