Perhaps you should try some spelling variations:
tinh vai » tinh va, tinh hai, tinh bai
dat tren » dat trong, dua tren
sach ty » sach y, sach tu, sach thu
nang xa » nang x, lang xa, nang ma
sach ly » sach y, sach lo, sach hay
van cam » van nam, van lam, van dam
van cau » van dau, van hau, van chat
va tinh » may tinh
vai dat » cai dat, va dat, van dat

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

• If you are trying to use Boolean operators, they must be ALL CAPS: toc ((sach ly) OR (sach ty)) nang xa hoi. hieu ((van cam) OR (van cau)) tu va tinh vai dat tren~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc ((sach ly) OR (sach ty)) nang xa hoi. hieu ((van cam) or (van cau)) tu va tinh vai dat tren~".
• Adding a wildcard symbol may retrieve word variants: toc ((sach ly) OR (sach ty)) nang xa hoi. hieu ((van cam) or (van cau)) tu va tinh vai dat tren*.