Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thoi su hoc snippets" » "khoi su hoc snippets", "thong su hoc snippets", "thoi rua hoc snippets", "thoi tu hoc snippets", "thoi du hoc snippets", "thoi so hoc 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: (((("thoi su hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thoi su hoc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thoi su hoc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thoi su hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.