Perhaps you should try some spelling variations:
hanh trinh » canh tranh
hoc thieu » toc thieu, hoc hien
luat dong » luat cong, luat bong, luan dong
dong cong » duong cong, dung cong, dang cong
cong hang » cong thang, cong hung, cong lang
ho chieu » theo chieu, doi chieu, mot chieu
va bao » va bai

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho chieu) or (hoc thieu)) xanh - ((hanh trinh) OR (hanh chinh)) luat dong cong hang va bao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (hoc thieu)) xanh - ((hanh trinh) OR (hanh chinh)) luat dong cong hang va bao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) or (hoc thieu)) xanh - ((hanh trinh) OR (hanh chinh)) luat dong cong hang va bao".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (hoc thieu)) xanh - ((hanh trinh) OR (hanh chinh)) luat dong cong hang va bao*.