Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"chap dat doi snippets" » "chap dat code snippets", "phap day doi snippets", "cai dat doi snippets", "lap dat doi snippets", "chap dat dai snippets", "chap dat boi snippets", "chap hat doi 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: (((("chap dat doi snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("chap dat doi snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( chap dat doi snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chap dat doi snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.