Perhaps you should try some spelling variations:
thanh tuong » thanh thuong, thanh tung, thanh huong
tuong quan » truong quan, thong quan, luong quan
hoc thieu » toc thieu, hoc hien
lang dong » lang trong, lao dong, vung dong
ho chieu » theo chieu, doi chieu, mot chieu
van tuan » van quan, van ban, anh tuan
tuan cao » toan cao, juan cao, quang cao

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho chieu) or (hoc thieu)) tinh - thanh tuong quan ((lang dong) OR (cong dong)) van tuan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (hoc thieu)) tinh - thanh tuong quan ((lang dong) OR (cong dong)) van tuan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) or (hoc thieu)) tinh - thanh tuong quan ((lang dong) OR (cong dong)) van tuan cao".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (hoc thieu)) tinh - thanh tuong quan ((lang dong) OR (cong dong)) van tuan cao*.