Perhaps you should try some spelling variations:
thanh trung » thanh tung
chiet tach » chieu sach
hieu lang » chieu sang, hieu quang, nhieu tang
cap nhung » cam nhung, vap nhung, canh nhung
dap nhung » vap nhung, va nhung, dap ung
cong anh » cong danh, dong anh, hong anh
anh toan » manh toan, anh tuan, thanh toan
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: theo ((chiet tach) or (hieu lang)) - thanh trung ((cap nhung) OR (dap nhung)) cong anh toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chiet tach) OR (hieu lang)) - thanh trung ((cap nhung) OR (dap nhung)) cong anh toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chiet tach) or (hieu lang)) - thanh trung ((cap nhung) OR (dap nhung)) cong anh toan cao".
• Adding a wildcard symbol may retrieve word variants: theo ((chiet tach) or (hieu lang)) - thanh trung ((cap nhung) OR (dap nhung)) cong anh toan cao*.