Perhaps you should try some spelling variations:
hanh trinh » hanh chinh
nhung cong » dung cong, thong cong, hang cong
cheo cua » cho cua, chuoi cua, co cua
cua nang » chua nang, cua dang, cua hang
cong tap » cuong tap, cong tac, cong tan
toan cau » toan cao, toan ban, toan tai
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: cheo cua nang - ((hanh trinh) OR (canh tranh)) va nhung cong tap ((toan cau) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: cheo cua nang - ((hanh trinh) OR (canh tranh)) va nhung cong tap ((toan cau) OR (toan tap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "cheo cua nang - ((hanh trinh) OR (canh tranh)) va nhung cong tap ((toan cau) or (toan tap))".
• Adding a wildcard symbol may retrieve word variants: cheo cua nang - ((hanh trinh) OR (canh tranh)) va nhung cong tap ((toan cau) or (toan tap))*.