Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"mong do van slippers" » "mong doi van slippers", "dong do van slippers", "mong du van slippers", "mong dao van slippers", "mong vo van slippers", "mong so van slippers", "mong do van slippery", "mong 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: (((("mong 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: (((("mong do van slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( mong do van slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("mong do van slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.