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