Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"gian hoc do snippets" » "gian hoi do snippets", "gian hoa do snippets", "gian doc do snippets", "gian hoc doi snippets", "gian hoc co snippets", "gian 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: (((("gian 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: (((("gian hoc do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( gian hoc do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("gian hoc do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.