Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"can chi he snippets" » "can thi he snippets", "van chi he snippets", "san chi he snippets", "can chi ha snippets", "can chi hieu snippets", "can choi hee 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: (((("can chi he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("can chi he snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( can chi he snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("can chi he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.