Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phi day hoc snippets" » "phi xay hoc snippets", "phi dau hoc snippets", "khi day hoc snippets", "phi dai hoc snippets", "phi dan 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: (((("phi day 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: (((("phi day hoc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phi day hoc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phi day hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.