Perhaps you should try some spelling variations:
hanh trinh » hanh chinh
chieu sang » chieu sach, chieu xanh, hieu lang
nhung cong » dung cong, thong cong, hang cong
cua nhung » va nhung
cong tan » cong tac, cong san, cong thanh
tan chan » dan chan, ban chan, can chan
chan cau » phan cau, can cau, chinh cau
chu han » chu van

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

• Performing a fuzzy search may retrieve terms with similar spellings: cho ((chieu sang) or (chu han)) - ((canh tranh) or (hanh trinh)) cua nhung cong tan chan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: cho ((chieu sang) OR (chu han)) - ((canh tranh) OR (hanh trinh)) cua nhung cong tan chan cau.
• Adding a wildcard symbol may retrieve word variants: cho ((chieu sang) or (chu han)) - ((canh tranh) or (hanh trinh)) cua nhung cong tan chan cau*.