Perhaps you should try some spelling variations:
hien nganh » vien nganh, hien nhanh, hieu nganh
nhung cong » dung cong, thong cong, hang cong
canh manh » lanh manh, canh tranh, cach mang
cua nhung » va nhung
manh toan » thanh toan, anh tuan, tinh toan
manh cua » doanh cua, ban cua
van tuan » van quan, van ban, anh tuan

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 nganh - canh manh cua nhung cong ((manh toan) or (van tuan)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien nganh - canh manh cua nhung cong ((manh toan) OR (van tuan)) cao.
• Adding a wildcard symbol may retrieve word variants: hoc hien nganh - canh manh cua nhung cong ((manh toan) or (van tuan)) cao*.