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