Perhaps you should try some spelling variations:
cau tren » cu tren, dau tren, ca tren
nam thuc » nam thuoc, am thuc, nam thu
hanh vai » hanh vi, hanh va, hanh tai
van hanh » van thanh, ban hanh, van anh
vai cau » va cau, van cau, vai cac
te sach » toc sach
hieu va » lieu va, hieu qua
cam tuc » cam xuc, cam tu, dam thuc
y lang » o lang, tay lang, yen lang
_ lang » o lang, _ land

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 ((y lang) or (_ lang)) xa hoi. hieu va ((cam tuc) or (nam thuc)) van hanh vai cau tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((y lang) OR (_ lang)) xa hoi. hieu va ((cam tuc) OR (nam thuc)) van hanh vai cau tren.
• Adding a wildcard symbol may retrieve word variants: te sach ((y lang) or (_ lang)) xa hoi. hieu va ((cam tuc) or (nam thuc)) van hanh vai cau tren*.