Perhaps you should try some spelling variations:
cover during » covers during, recover during, recovery during
how stable » do stable, how scale, how state
wang yang » wang yan, wang liang, wang yanling
yang kong » hong kong, king kong, tan kong
kong land » kong hang, kong lyn
how shih » how six, how she

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang yang kong land cover during crises ((how shih) or (how stable)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yang kong land cover during crises ((how shih) OR (how stable)) ;*.