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