Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
trinh luan » trinh luat, trinh quan, trinh han
chung cong » nhung cong, chong cong, chung thong
phung cong » nhung cong, nhung chong, dung cong
phong cong » phong chong, thong cong, chong cong
hien xanh » hien hanh, hien nhanh, chieu xanh
tan toan » tan tran, tap toan, van 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: hoc hien xanh - hanh trinh luan ((chung cong) or (((phung cong) OR (phong cong)))) tan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien xanh - hanh trinh luan ((chung cong) OR (((phung cong) OR (phong cong)))) tan toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hien xanh - hanh trinh luan ((chung cong) or (((phung cong) OR (phong cong)))) tan toan cau".
• Adding a wildcard symbol may retrieve word variants: hoc hien xanh - hanh trinh luan ((chung cong) or (((phung cong) OR (phong cong)))) tan toan cau*.