Perhaps you should try some spelling variations:
trong tinh » truong tinh, trong kinh, trong sinh
doi chieu » doc hieu, doi chi, ho chieu
mot chieu » ho chieu
chinh va » chinh ta, chinh tai, hanh va
toan cao » toan tap
toan ban » van ban
va dung » van dung, va duong, vat dung

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((doi chieu) or (mot chieu)) xanh - hanh chinh va dung trong tinh ((toan cao) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chieu) OR (mot chieu)) xanh - hanh chinh va dung trong tinh ((toan cao) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: ((doi chieu) or (mot chieu)) xanh - hanh chinh va dung trong tinh ((toan cao) or (toan ban))*.