Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sach » chinh sach, chiet tach, chieu sang
chau tinh » cuu tinh, ha tinh, cua tinh
cap dung » cao dung, chan dung, cach dung
cong van » cong vang, cong san, song van
van phan » van phong, van thanh, luan phan
phan dau » phan tu, hang dau
ap dung » xay dung, van dung

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi ((chau tinh) or (chieu sach)) - thanh trung ((cap dung) or (ap dung)) cong van phan dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chau tinh) OR (chieu sach)) - thanh trung ((cap dung) OR (ap dung)) cong van phan dau.
• Adding a wildcard symbol may retrieve word variants: doi ((chau tinh) or (chieu sach)) - thanh trung ((cap dung) or (ap dung)) cong van phan dau*.