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