Perhaps you should try some spelling variations:
cong thanh » dong thanh, cong trinh, cong tan
hien danh » thien danh, hien hanh, hien nhanh
ganh nang » anh nang, nganh nong, van nang
cua nhung » va nhung
cong manh » cong danh, duong manh, hoang manh
nang cua » mang cua, hang cua, nang dua
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 danh - ganh nang cua nhung ((cong manh) or (cong thanh)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien danh - ganh nang cua nhung ((cong manh) OR (cong thanh)) toan cau.
• Adding a wildcard symbol may retrieve word variants: hoc hien danh - ganh nang cua nhung ((cong manh) or (cong thanh)) toan cau*.