Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cot voi can snippets" » "cot loi can snippets", "cot soi can snippets", "iot voi can snippets", "cot voi cac snippets", "cot voi cong snippets", "cot voi hang 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: (((("cot voi can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cot voi can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cot voi can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cot voi can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.