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