Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chung chi he snippets" » "thuong chi he snippets", "chung cu he snippets", "chung vi he snippets", "chung chi ha snippets", "chung chi hieu snippets", "chung 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: (((("chung 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: (((("chung chi he snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chung chi he snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chung chi he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.