Perhaps you should try some spelling variations:
thanh dieu » thanh lieu, than dieu, hanh dieu
van thanh » ban thanh, van tuan
cau tren » cu tren, dau tren, ca tren
dieu cau » dieu can, diem cau, dieu cam
tay tang » tay lang, tay trung, tay quang
tu sach » thu sach, su sach, tu cach
tang xa » trang xa, tang ma, lang xa
te sach » toc sach

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)) tay tang xa hoi. hieu qua ((cam vuc) or (cam xuc)) van thanh dieu cau tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (te sach)) tay tang xa hoi. hieu qua ((cam vuc) OR (cam xuc)) van thanh dieu cau tren.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) OR (te sach)) tay tang xa hoi. hieu qua ((cam vuc) or (cam xuc)) van thanh dieu cau tren".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) OR (te sach)) tay tang xa hoi. hieu qua ((cam vuc) or (cam xuc)) van thanh dieu cau tren*.