Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thu thi hoai snippets" » "thu thi hai snippets", "thu thi hoa snippets", "thu thi hoan snippets", "thuc thi hoai snippets", "thu thai hoai snippets", "thuy thi hoai 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: (((("thu thi hoai snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thu thi hoai snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thu thi hoai snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thu thi hoai snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.