Perhaps you should try some spelling variations:
trong huong » trong thuong, trong chuong, truong huong
chieu sang » chieu sach, chieu xanh, hieu lang
hanh tranh » canh tranh, hanh trinh, hanh trang
tranh cua » doanh cua, manh cua
cua trong » cua truong, cua trung, qua trong
dan toan » van toan, dan than, manh toan
toan cao » toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((chieu sang) or (chinh sach)) - hanh tranh cua trong huong dan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu sang) OR (chinh sach)) - hanh tranh cua trong huong dan toan cao.
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu sang) or (chinh sach)) - hanh tranh cua trong huong dan toan cao*.