Perhaps you should try some spelling variations:
khoang cong » hoang cong, khoang trong, thong cong
anh truong » manh truong, anh thuong, anh trong
dai khoang » da khoang, dai khong, tao khoang
doi trieu » dong trieu, doi chieu, doi trinh
cong sat » cong suat, cong san, cong hat
phan cau » phan dau, phan cac, phan lap

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi trieu tinh - anh truong dai khoang cong sat ((phan cau) OR (phan tu))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi trieu tinh - anh truong dai khoang cong sat ((phan cau) OR (phan tu))".
• Adding a wildcard symbol may retrieve word variants: doi trieu tinh - anh truong dai khoang cong sat ((phan cau) OR (phan tu))*.