Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cong hoa hop snippets" » "dong hoa hop snippets", "dong hoc hop snippets", "hang hoa hop snippets", "cong hoa hoc snippets", "cong hon hop snippets", "cong hoa ho 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: (((("cong hoa 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: (((("cong hoa hop snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cong hoa hop snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong hoa hop snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.