Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"van hoach do snippets" » "van hach do snippets", "van hoa do snippets", "van hoc do snippets", "van hoach de snippets", "van hoach du snippets", "van hoach hoi 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: (((("van hoach do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("van hoach do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( van hoach do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("van hoach do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.