Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"len cho can snippets" » "len choi can snippets", "nen cho can snippets", "ben cho can snippets", "len cho cac snippets", "len cho phan snippets", "len cho cong 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: (((("len cho 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: (((("len cho can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( len cho can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("len cho can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.