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