Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"huu hoach du snippets" » "quy hoach du snippets", "thu hoach du snippets", "huu hanh du snippets", "huu hoach su snippets", "huu hoach de snippets", "huu hoach do 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 ("huu hoach du snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("huu hoach du snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( huu hoach du snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("huu hoach du snippets"))) or ("locating bug code snippets"))*.