Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thuc thi hop snippets" » "thuc thai hop snippets", "thuc thuc hop snippets", "luc thi hop snippets", "thuc thi hoa snippets", "thuc thi hoe snippets", "thuc thich hop 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 thi hop 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 thi hop snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thuc thi hop snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thuc thi hop snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.