Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"web tang cho snippets" » "web bang cho snippets", "wei tang cho snippets", "le tang cho snippets", "web trang cho snippets", "web sang cho snippets", "web hang 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: (((("web tang 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: (((("web tang cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( web tang cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("web tang cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.