Perhaps you should try some spelling variations:
chien thang » chien thuong, chien chong, hien trang
hoc chien » hoc hien, hoach chien, hoc chuyen
cua trong » cua truong, qua trong, ca trong
cua trung » cua truong, xuan trung, cua nhung
cong dan » cong san, cong tan, huong dan
dan hang » ban hang, van hang, dat hang

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc chien thang - canh tranh ((cua trong) or (cua trung)) cong dan hang va~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chien thang - canh tranh ((cua trong) OR (cua trung)) cong dan hang va.
• Adding a wildcard symbol may retrieve word variants: hoc chien thang - canh tranh ((cua trong) or (cua trung)) cong dan hang va*.