Perhaps you should try some spelling variations:
nhung huong » nhung phuong, nhung tuong, nhung cong
chieu sang » chieu sach, hieu lang, nhieu tang
chieu xanh » chieu sach, chieu tinh, hieu manh
hanh trung » thanh trung, hanh trang, manh trung
trung tham » trung tam, trung thanh, trung thang
tham nhung » thi nhung
hien hanh » dieu hanh
dan toan » van toan, dan than, manh toan
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 ((((chieu xanh) or (hien hanh))) or (chieu sang)) - hanh trung tham nhung huong dan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((((chieu xanh) OR (hien hanh))) OR (chieu sang)) - hanh trung tham nhung huong dan toan ban.
• Adding a wildcard symbol may retrieve word variants: hoc ((((chieu xanh) or (hien hanh))) or (chieu sang)) - hanh trung tham nhung huong dan toan ban*.