Perhaps you should try some spelling variations:
thu sach » thuat sach, thuoc sach, thu hoach
danh vai » danh sai, danh va, doanh van
vai cua » dai cua, hai cua, lai cua
va danh » va dinh, va dan, va hanh
cau luc » cau truc, cau phuc
cam luc » cam xuc
xang xa » lang xa, mang xa, ang xa
le xang » le tang, le dang, le quang
tu sach » su sach, te sach, tu cach
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: ((thu sach) or (tu sach)) le xang xa hoi. hieu qua ((cam luc) or (cau luc)) va danh vai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thu sach) OR (tu sach)) le xang xa hoi. hieu qua ((cam luc) OR (cau luc)) va danh vai cua te.
• Adding a wildcard symbol may retrieve word variants: ((thu sach) or (tu sach)) le xang xa hoi. hieu qua ((cam luc) or (cau luc)) va danh vai cua te*.