Perhaps you should try some spelling variations:
hanh thang » nhanh thang, thanh thang, hanh trang
cong vinh » cong trinh, trong vinh, cong viec
vinh toan » tinh toan, hinh toan, minh toan
ho chieu » theo chieu, hoc thieu, doi chieu
toan cao » toan ban, toan tap
ho hieu » hoi hieu, nho hieu, co hieu
he dung » he dong, nghe dung, hoc dung
te dung » tieu dung, tien dung, tin dung

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) OR (ho chieu)) quang - hanh thang ((he dung) or (te dung)) cong vinh toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho hieu) OR (ho chieu)) quang - hanh thang ((he dung) OR (te dung)) cong vinh toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho hieu) OR (ho chieu)) quang - hanh thang ((he dung) or (te dung)) cong vinh toan cao".
• Adding a wildcard symbol may retrieve word variants: ((ho hieu) OR (ho chieu)) quang - hanh thang ((he dung) or (te dung)) cong vinh toan cao*.