Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"theo ca hoc snippets" » "tho ca hoc snippets", "theo chu hoc snippets", "theo ucp hoc snippets", "theo cao hoc snippets", "theo cua hoc snippets", "theo cac 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: (((("theo ca 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: (((("theo ca hoc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( theo ca hoc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("theo ca hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.