Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thuc ke tre snippets" » "thuc te tre snippets", "thuc ve tre snippets", "chuc ke tre snippets", "thuc me tre snippets", "thuc khoe tre 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: (((("thuc ke tre snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thuc ke tre snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thuc ke tre snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thuc ke tre snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.