Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hai hoc do snippets" » "thai hoc do snippets", "hai huoc do snippets", "dai hoc do snippets", "hai hoc doi snippets", "hai hoc co snippets", "hai hoc bo 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: (((("hai hoc do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hai hoc do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hai hoc do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hai hoc do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.