Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
cong ngang » cong nhan, cong quang, cong lang
hien danh » thien danh, hien hanh, hien nhanh
trinh han » trinh quan
han nhung » hanh nhung, hon nhung, ban nhung
cong vang » cong lang, cong quang, cong dong
cong san » cong tac
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 hien danh - hanh trinh han nhung ((((cong vang) OR (cong san))) or (cong ngang)) than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien danh - hanh trinh han nhung ((((cong vang) OR (cong san))) OR (cong ngang)) than cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hien danh - hanh trinh han nhung ((((cong vang) OR (cong san))) or (cong ngang)) than cau".
• Adding a wildcard symbol may retrieve word variants: hoc hien danh - hanh trinh han nhung ((((cong vang) OR (cong san))) or (cong ngang)) than cau*.