Perhaps you should try some spelling variations:
thien danh » thien anh, thien dang, thien thanh
hanh tranh » canh tranh, hanh trinh, hanh trang
nhung cong » dung cong, thong cong, hang cong
tieu danh » dieu danh, tiep danh, dieu hanh
tranh cua » doanh cua, manh cua
cua nhung » va nhung
van tuan » van quan, van ban

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

• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((tieu danh) OR (thien danh)) - hanh tranh cua nhung cong ((van tuan) OR (anh tuan)) tu~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((tieu danh) OR (thien danh)) - hanh tranh cua nhung cong ((van tuan) or (anh tuan)) tu~".
• Adding a wildcard symbol may retrieve word variants: theo ((tieu danh) OR (thien danh)) - hanh tranh cua nhung cong ((van tuan) or (anh tuan)) tu*.