Perhaps you should try some spelling variations:
chuong dong » chuong duong, phuong dong, huong dong
hanh trinh » canh tranh, hanh chinh
cua chuong » cua chung, cua phuong, cua huong
tieu tinh » trieu tinh, tieu trinh, lieu tinh
trinh cua » tinh cua, trinh luat, trinh quan
dong hoc » dong co, dong luc
toan cao » toan ban
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo tieu tinh - hanh trinh cua chuong dong hoc ((toan cao) OR (toan tap))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu tinh - hanh trinh cua chuong dong hoc ((toan cao) OR (toan tap))".
• Adding a wildcard symbol may retrieve word variants: theo tieu tinh - hanh trinh cua chuong dong hoc ((toan cao) OR (toan tap))*.