Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"leng du hoc snippets" » "lang du hoc snippets", "leng su hoc snippets", "lang duc hoc snippets", "leng tu hoc snippets", "leng duoc 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: (((("leng du 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: (((("leng du hoc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( leng du hoc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("leng du hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.