Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tri du phan slippers" » "tri duc phan slippers", "tri duy phan slippers", "tri d phan slippers", "tri du phan slippery", "tri du phan grippers"
"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: (((("tri du phan slippers") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tri du phan slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tri du phan slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tri du phan slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.