Perhaps you should try some spelling variations:
luat chung » luan chung, luat thuong, cua chung
hanh trinh » canh tranh, hanh chinh
bien tinh » bi tinh, yen tinh, diep tinh
luat dung » suat dung, luat quang, thuat dung
hoc bien » hoc hien, hoc vien, hoa bien
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than cau » toan cau, phan cau, than cap

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc bien tinh - hanh trinh ((luat dung) or (luat chung)) cong dan than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc bien tinh - hanh trinh ((luat dung) OR (luat chung)) cong dan than cau*.