Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phuc van he snippets" » "thuc van he snippets", "phuc va he snippets", "chuc van he snippets", "phuc van hoe snippets", "phuc van hue snippets", "phuc van de 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: (((("phuc van he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phuc van he snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phuc van he snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phuc van he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.