Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hanh tranh » canh tranh, hanh trinh, hanh trang
tranh cua » doanh cua, manh cua
cua nhung » va nhung
chi xanh » chi anh, chi danh, chi hanh
van tuan » van quan, anh tuan
doi chi » doi khi

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chi xanh - hanh tranh cua nhung cong ((van tuan) OR (van ban)) tu~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chi xanh - hanh tranh cua nhung cong ((van tuan) OR (van ban)) tu".
• Adding a wildcard symbol may retrieve word variants: doi chi xanh - hanh tranh cua nhung cong ((van tuan) OR (van ban)) tu*.