Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, hanh trang
cong ngang » cong nhan, cong quang, cong vang
tieu sang » chieu sang, tieu dung, tiem nang
tranh cua » doanh cua, manh cua
cua nhung » va nhung
cong nong » cong dong, cong cong, cong trong
cong lang » cong vang, cong luong, cong quang
tan cua » than cua, tang cua, toan cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo tieu sang - hanh tranh cua nhung ((((cong ngang) OR (cong nong))) or (cong lang)) tan cua~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu sang - hanh tranh cua nhung ((((cong ngang) OR (cong nong))) OR (cong lang)) tan cua*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu sang - hanh tranh cua nhung ((((cong ngang) OR (cong nong))) or (cong lang)) tan cua*".