Perhaps you should try some spelling variations:
truong cong » trong cong, truong dong, truong long
chieu sach » chinh sach, chieu sang, chieu xanh
trung cong » trong cong, trung uong, trang cong
hanh manh » hanh mang, lanh manh, hoang manh
manh cua » doanh cua, ban cua
van toan » van tuan, van tan, van thanh
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: theo ((chieu sach) or (chiet tach)) - hanh manh cua ((trung cong) OR (truong cong)) van toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu sach) OR (chiet tach)) - hanh manh cua ((trung cong) OR (truong cong)) van toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu sach) or (chiet tach)) - hanh manh cua ((trung cong) OR (truong cong)) van toan cao".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu sach) or (chiet tach)) - hanh manh cua ((trung cong) OR (truong cong)) van toan cao*.