Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
trong doan » trong doanh, trong dan, trong hoan
doi chieu » doc hieu, doi chi, ho chieu
tuong ban » tuong bang, trong ban, tuong dan
tung xay » tung bay, thong xay, trong xay
doan van » doan va, hoang van, luan van

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 tinh - thanh ((tung xay) or (tuong ban)) dung trong doan van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu tinh - thanh ((tung xay) OR (tuong ban)) dung trong doan van ban*.