Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"kho canh le snippets" » "kho tang le snippets", "thu canh le snippets", "cho can le snippets", "kho manh le snippets", "kho anh le snippets", "kho cach le 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: (((("kho canh le snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("kho canh le snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( kho canh le snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("kho canh le snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.