Perhaps you should try some spelling variations:
nhanh luong » nhanh chuong, nhanh quang, nhanh chong
theo chiet » theo chieu, thep thiet
chiet tach » chieu sach
nang luong » nang song
cong ngang » cong nhan, cong quang, cong lang
cua nhung » va nhung
cong vang » cong lang, cong quang, cong san
toan cau » toan cao, toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chiet tach - ((nhanh luong) or (nang luong)) cua nhung ((cong vang) OR (cong ngang)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chiet tach - ((nhanh luong) OR (nang luong)) cua nhung ((cong vang) OR (cong ngang)) toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chiet tach - ((nhanh luong) or (nang luong)) cua nhung ((cong vang) OR (cong ngang)) toan cau".
• Adding a wildcard symbol may retrieve word variants: theo chiet tach - ((nhanh luong) or (nang luong)) cua nhung ((cong vang) OR (cong ngang)) toan cau*.