Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hap han cho snippets" » "phap han cho snippets", "cap han cho snippets", "hap ban cho snippets", "hap hang cho snippets", "hap han che snippets", "hap 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: (((("hap 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: (((("hap han cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hap han cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hap han cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.