Perhaps you should try some spelling variations:
truong dao » truong cao, truong bo
hang trong » hoang trong, thang trong, lang trong
trong hach » trong mach, trong cach, trong hanh
hieu lang » chieu sang, hieu quang, nhieu tang
hach toan » thanh toan, manh toan
toan tap » toan ban
ho hieu » ho chieu, hoi hieu, nho hieu

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 lang - thanh ((truong dao) or (truong dai)) hang trong hach toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho hieu lang - thanh ((truong dao) OR (truong dai)) hang trong hach toan tap.
• Adding a wildcard symbol may retrieve word variants: ho hieu lang - thanh ((truong dao) or (truong dai)) hang trong hach toan tap*.