Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"doi hang ve snippets" » "doi khang ve snippets", "voi hang ve snippets", "doi hanh ve snippets", "doi hang va snippets", "doi hang ke 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 hang ve 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 hang ve snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doi hang ve snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doi hang ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.