Perhaps you should try some spelling variations:
hieu nganh » vien nganh, hiem ngan, hieu manh
chieu sang » chieu sach, chieu xanh, hieu lang
lanh sang » anh sang, lanh bang, doanh sang
dung cong » dung trong
cong manh » cong danh, duong manh, cong thanh
manh toan » thanh toan, anh tuan, tinh toan
anh dong » anh huong, anh son
van dung » van dong, xay dung, tin dung
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: ho ((hieu nganh) or (chieu sang)) - ((lanh sang) or (anh dong)) van dung cong manh toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((hieu nganh) OR (chieu sang)) - ((lanh sang) OR (anh dong)) van dung cong manh toan tap.
• Adding a wildcard symbol may retrieve word variants: ho ((hieu nganh) or (chieu sang)) - ((lanh sang) or (anh dong)) van dung cong manh toan tap*.