Perhaps you should try some spelling variations:
truong phuong » truong chung, truong trung, dung phuong
hanh truong » hanh trong, anh truong, manh truong
truong quan » trong quan, thong quan, luong quan
quan truong » quang truong, quan trong, xuan truong
chiet tach » chieu sach
chau tinh » cuu tinh, ha tinh, cua tinh
van tan » van tuan, van ban, van thanh
van tai » von tai, van tuan

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((chiet tach) or (chau tinh)) - hanh truong quan truong phuong ((van tan) OR (van tai)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chiet tach) OR (chau tinh)) - hanh truong quan truong phuong ((van tan) OR (van tai)) cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((chiet tach) or (chau tinh)) - hanh truong quan truong phuong ((van tan) OR (van tai)) cao".
• Adding a wildcard symbol may retrieve word variants: hoc ((chiet tach) or (chau tinh)) - hanh truong quan truong phuong ((van tan) OR (van tai)) cao*.