Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hoc tri moi snippets" » "hoc tai moi snippets", "hoc trinh moi snippets", "hoc thai moi snippets", "hoc tri mot snippets", "hoc thi moi snippets", "hoc tri doi 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 tri moi 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 tri moi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoc tri moi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoc tri moi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.