Perhaps you should try some spelling variations:
zhi parents » his parents, ii parents, lz's parents
parents sea » barents sea, parents self, parents send
sea mining » a mining
congo can » congo call, cong van, congo a
long du » long d, long do, long run
yan zhi » yan zi, wang zhi
du yan » du yang, mu yan, xu yan

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

• Performing a fuzzy search may retrieve terms with similar spellings: long du yan zhi parents sea mining ((hoang vu) or (congo can)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: long du yan zhi parents sea mining ((hoang vu) OR (congo can)) ;.
• Adding a wildcard symbol may retrieve word variants: long du yan zhi parents sea mining ((hoang vu) or (congo can)) ;*.