Perhaps you should try some spelling variations:
chau tinh » cuu tinh, ha tinh, cac tinh
tranh cua » doanh cua, manh cua
dung cong » dung trong
chu xanh » chu manh, chieu xanh, chua xang
cua tinh » cua sinh, va tinh, ha tinh
cua dung » cua dang, cua dong, qua dung
cong van » cong vang, cong san, song van
ban can » ban dan, ban hang, ban hanh

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 ((chu xanh) OR (((chau tinh) OR (cua tinh)))) - canh tranh cua dung cong van ban can~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chu xanh) or (((chau tinh) OR (cua tinh)))) - canh tranh cua dung cong van ban can~".
• Adding a wildcard symbol may retrieve word variants: theo ((chu xanh) or (((chau tinh) OR (cua tinh)))) - canh tranh cua dung cong van ban can*.