Perhaps you should try some spelling variations:
quan nhung » qua nhung, cua nhung, luan chung
cong ngang » cong nhan, cong quang, cong lang
nhanh ban » nhanh bac, nhanh ba, thanh ban
cong vang » cong lang, cong quang, cong san
dien dan » hien dai, vien dai, dien va
gian dan » gian lang
ban quan » van quan
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: hoc ((dien dan) OR (gian dan)) - nhanh ban quan nhung ((cong vang) or (cong ngang)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((dien dan) OR (gian dan)) - nhanh ban quan nhung ((cong vang) OR (cong ngang)) toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((dien dan) OR (gian dan)) - nhanh ban quan nhung ((cong vang) or (cong ngang)) toan cau".
• Adding a wildcard symbol may retrieve word variants: hoc ((dien dan) OR (gian dan)) - nhanh ban quan nhung ((cong vang) or (cong ngang)) toan cau*.