Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"canh van can snippets" » "anh van can snippets", "can van can snippets", "cach van can snippets", "canh van canh snippets", "canh van ban snippets", "canh ban can 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: (((("canh van 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: (((("canh van can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( canh van can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("canh van can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.