Perhaps you should try some spelling variations:
hieu vien » hieu hien, hieu viec, thieu nien
sang lap » sang tao, sang ma, sang tai
vien cac » vien bach, vien dai, vien da
so sach » so sanh, bo sach, co sach
sach ty » sach y, sach tu, sach thu
ty sang » ty xang, ty hang, duy sang
lap hai » lap tai, lap lai, lap hoat
cac luc » cau luc, coc luc, cac nuoc
danh vi » dinh vi, danh di, danh va
luc va » duc va, tuc va, loc va
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sach ty sang lap hai. hieu vien cac luc va ((danh vi) or (hanh vi)) cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ty sang lap hai. hieu vien cac luc va ((danh vi) OR (hanh vi)) cua te.
• Adding a wildcard symbol may retrieve word variants: so sach ty sang lap hai. hieu vien cac luc va ((danh vi) or (hanh vi)) cua te*.