Perhaps you should try some spelling variations:
nhan trong » nhuan trong, nhat trong, nhin trong
manh trung » manh tung, thanh trung, manh hung
khau sach » hau sach, khoa sach, pham sach
trung cap » truong cao, trung tam
trong van » trong cac
khi sach » khi sac, khoa sach, khoe sach
cap nhan » ca nhan, cam nhan, cac nhan
ban cao » bao cao, ban can, ban co

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi ((khi sach) or (khau sach)) - manh trung cap nhan trong van ban cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((khi sach) OR (khau sach)) - manh trung cap nhan trong van ban cao.
• Adding a wildcard symbol may retrieve word variants: doi ((khi sach) or (khau sach)) - manh trung cap nhan trong van ban cao*.