Perhaps you should try some spelling variations:
costa sharing » cost sharing, data sharing, loss sharing
sharing oil » sharing our, sharing big, sharing his
long thanh » luong thanh, long han, long trinh
long span » long han
wang dan » wang yan, wang ban, wang yidan
oil line » rail line
line arm » line area, line a, line age

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: wang dan ((long span) OR (long thanh)) costa sharing oil line arm ;~.
• Adding a wildcard symbol may retrieve word variants: wang dan ((long span) or (long thanh)) costa sharing oil line arm ;*.