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