Perhaps you should try some spelling variations:
nhanh tinh » nhanh thanh, hanh trinh, nhan sinh
chat thong » chat chong, chat phong, chat trong
tien manh » tien anh, tien thanh, tieng anh
hoc tien » hoc tieng, hoc hien, hoc vien
cong san » cong tac
than ban » thanh ban, than man, nhuan ban
toan ban » van ban

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 chat thong ((cong san) OR (huong dan)) ((than ban) OR (toan ban))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc tien manh - nhanh tinh chat thong ((cong san) OR (huong dan)) ((than ban) OR (toan ban))".
• Adding a wildcard symbol may retrieve word variants: hoc tien manh - nhanh tinh chat thong ((cong san) OR (huong dan)) ((than ban) OR (toan ban))*.