Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cong van ha slippers" » "cong vang ha slippers", "cong san ha slippers", "song van ha slippers", "cong van hoa slippers", "cong van chat slippers", "cong van hanh slippers", "cong van ha slippery", "cong van ha 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 van ha 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 van ha slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cong van ha slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong van ha slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.