Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"doi kinh con snippets" » "do kinh con snippets", "doi dinh con snippets", "doi tinh con snippets", "doi kinh co snippets", "doi kinh mon snippets", "doi kinh can snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core 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: (((("doi kinh con snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("doi kinh con snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doi kinh con snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doi kinh con snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.