Perhaps you should try some spelling variations:
canh trinh » canh tranh, hanh trinh, canh tinh
phong cong » phong chong, thong cong, chong cong
hien xanh » hien hanh, hien nhanh, chieu xanh
trinh cac » trinh cau, trinh chat, trinh chao
cac phong » cac phuong, cac chuong, chau phong
gian cham » gian cua, gian cac, gian ha
cong dan » cong san, cong tan, huong dan

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hien xanh - canh trinh cac phong cong dan gian cham~.
• Adding a wildcard symbol may retrieve word variants: hoc hien xanh - canh trinh cac phong cong dan gian cham*.