Perhaps you should try some spelling variations:
truong cong » trong cong, truong dong, truong long
trinh cham » trinh chat, trinh chao, trinh han
tranh cham » tranh chap, trang cham, thanh cham
doc hieu » toc thieu, hoc thieu
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan cau » 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: ((doc hieu) or (hoc hien)) tinh - canh ((tranh cham) OR (trinh cham)) truong cong dan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doc hieu) OR (hoc hien)) tinh - canh ((tranh cham) OR (trinh cham)) truong cong dan toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doc hieu) or (hoc hien)) tinh - canh ((tranh cham) OR (trinh cham)) truong cong dan toan cau".
• Adding a wildcard symbol may retrieve word variants: ((doc hieu) or (hoc hien)) tinh - canh ((tranh cham) OR (trinh cham)) truong cong dan toan cau*.