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