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