Perhaps you should try some spelling variations:
chau tinh » cuu tinh, ha tinh, cua tinh
hanh dong » anh dong, ha dong
dong luan » dung luan, tong luan, dong xuan
luan hung » luan chung, lan hung, luan ung
hung cong » nhung cong, hung cuong, phung cong
cong tinh » cong trinh, cong vinh, long tinh
toan cao » toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((chau tinh) or (chinh sach)) - hanh dong luan hung cong tinh toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chau tinh) OR (chinh sach)) - hanh dong luan hung cong tinh toan cao.
• Adding a wildcard symbol may retrieve word variants: ho ((chau tinh) or (chinh sach)) - hanh dong luan hung cong tinh toan cao*.