Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thieu mot xe snippets" » "hieu mot xe snippets", "thieu so xe snippets", "hieu moi xe snippets", "thieu mot ke snippets", "thieu mot de snippets", "thieu mot he 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: (((("thieu mot xe snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thieu mot xe snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thieu mot xe snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thieu mot xe snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.