Perhaps you should try some spelling variations:
nhanh tinh » nhanh thanh, nhan sinh
hanh trinh » canh tranh, hanh chinh
tien manh » tien anh, tien thanh, tieng anh
cua thong » cua thuong, cua khong, cua tong
hoc tien » hoc tieng, hoc hien, hoc vien
cong san » cong tac
than ban » thanh ban, toan ban, than man

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc tien manh - ((nhanh tinh) OR (hanh trinh)) cua thong ((cong san) or (huong dan)) than ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc tien manh - ((nhanh tinh) OR (hanh trinh)) cua thong ((cong san) OR (huong dan)) than ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc tien manh - ((nhanh tinh) OR (hanh trinh)) cua thong ((cong san) or (huong dan)) than ban".
• Adding a wildcard symbol may retrieve word variants: hoc tien manh - ((nhanh tinh) OR (hanh trinh)) cua thong ((cong san) or (huong dan)) than ban*.