Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"van chi lon snippets" » "van chien lon snippets", "luan chi lon snippets", "van chat lon snippets", "van cho lon snippets", "van chi con snippets", "van chi loc 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 chi lon 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 chi lon snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( van chi lon snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("van chi lon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.