Perhaps you should try some spelling variations:
cua phuong » cuu phuong, cuc phuong, luan phuong
cong nhanh » cong thanh, cong nhan, cong khanh
nhanh hanh » nhanh thanh, nhanh thang, thanh thanh
hoc trieu » hoc thieu, hoc tieu, hoc dieu
cua khong » hua khong, cua thuong, cua cong
hanh cac » hang cac, hanh cat, nhanh cay

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc trieu tinh - ((hanh chinh) or (canh tranh)) ((cua khong) OR (cua phuong)) cong nhanh hanh cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc trieu tinh - ((hanh chinh) OR (canh tranh)) ((cua khong) OR (cua phuong)) cong nhanh hanh cac.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc trieu tinh - ((hanh chinh) or (canh tranh)) ((cua khong) OR (cua phuong)) cong nhanh hanh cac".
• Adding a wildcard symbol may retrieve word variants: hoc trieu tinh - ((hanh chinh) or (canh tranh)) ((cua khong) OR (cua phuong)) cong nhanh hanh cac*.