Perhaps you should try some spelling variations:
thanh tuong » thanh thuong, thanh tung, thanh huong
cua trong » cua truong, qua trong, ca trong
cua trung » cua truong, xuan trung, cua nhung
hoc hieu » hoc thieu, hoc hien, hoc dieu
doc hieu » toc thieu, hoc thieu, hoc hien
cong tan » cong tac, cong san, cong thanh
tan than » tan thanh, tan tran, ban than
than cau » toan cau, phan cau, than cap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc hieu) or (doc hieu)) nganh - thanh tuong ((cua trong) OR (cua trung)) cong tan than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc hieu) OR (doc hieu)) nganh - thanh tuong ((cua trong) OR (cua trung)) cong tan than cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc hieu) or (doc hieu)) nganh - thanh tuong ((cua trong) OR (cua trung)) cong tan than cau".
• Adding a wildcard symbol may retrieve word variants: ((hoc hieu) or (doc hieu)) nganh - thanh tuong ((cua trong) OR (cua trung)) cong tan than cau*.