Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"cheng lu ca snippets" » "cheng lu code snippets", "cheng lin ca snippets", "zheng liu ca snippets", "chen yu ca snippets", "cheng ly ca snippets", "cheng li ca snippets", "cheng lu va snippets"
"python using java snippets" » "python using data snippets"

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("cheng lu ca snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cheng lu ca snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( cheng lu ca snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cheng lu ca snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.