Perhaps you should try some spelling variations:
truong luong » trong luong, truong huong, truong long
thuong luong » theo luong, cong luong, thong thuong
trong quang » truong quang, thong quang, trong quan
chieu tinh » trieu tinh, lieu tinh, chau tinh
hinh trong » chinh trong, dinh trong, sinh trong
ho chieu » theo chieu, hoc thieu, doi chieu
toan cau » toan cao, toan ban, toan tap
va toan » van toan, bai toan, tap toan

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chieu tinh - hinh trong quang ((truong luong) or (thuong luong)) va toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu tinh - hinh trong quang ((truong luong) OR (thuong luong)) va toan cau.
• Adding a wildcard symbol may retrieve word variants: ho chieu tinh - hinh trong quang ((truong luong) or (thuong luong)) va toan cau*.