Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cho han cho snippets" » "cho phan cho snippets", "cho hang cho snippets", "cho nhan cho snippets", "cho han che snippets", "cho san cho 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: (((("cho han cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cho han cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cho han cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cho han cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.