Perhaps you should try some spelling variations:
thuong cong » thong cong, thuong con, thuong dong
cua thuong » cua truong, cua phuong, ca thuong
hanh tinh » hanh trinh, nhanh tinh, thanh tinh
hoc dieu » hoc thieu
tinh cua » trinh cua, sinh cua, tinh chat
cong dan » cong san, cong tan, huong dan
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 dieu) or (hoc hien)) xanh - hanh tinh cua thuong cong dan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc dieu) OR (hoc hien)) xanh - hanh tinh cua thuong cong dan toan ban.
• Adding a wildcard symbol may retrieve word variants: ((hoc dieu) or (hoc hien)) xanh - hanh tinh cua thuong cong dan toan ban*.