Perhaps you should try some spelling variations:
tranh quang » trinh quang, tinh quang, trinh quan
chieu tinh » trieu tinh, lieu tinh, chau tinh
hoc chieu » hoc thieu, ho chieu, hoc hien
dung cong » dung trong
xay trong » cay trong, day trong, gay trong
trong thu » trong nha
cong xay » thong xay, trong xay, cong ty

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc chieu tinh - canh ((tranh quang) or (tran quang)) dung cong xay trong thu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu tinh - canh ((tranh quang) OR (tran quang)) dung cong xay trong thu.
• Adding a wildcard symbol may retrieve word variants: hoc chieu tinh - canh ((tranh quang) or (tran quang)) dung cong xay trong thu*.