Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trang, lanh tranh
hanh trinh » canh tranh, hanh chinh
cua truong » cua trung, xuan truong, cac truong
hien danh » thien danh, hien hanh, hien nhanh
cua trong » cua trung, qua trong, ca trong
cong san » cong tac
san toan » van toan, dan toan, manh toan
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hien danh - ((hanh tranh) or (hanh trinh)) ((cua trong) or (cua truong)) cong san toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien danh - ((hanh tranh) OR (hanh trinh)) ((cua trong) OR (cua truong)) cong san toan ban.
• Adding a wildcard symbol may retrieve word variants: hoc hien danh - ((hanh tranh) or (hanh trinh)) ((cua trong) or (cua truong)) cong san toan ban*.