Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chi cua cao snippets" » "chi cuc cao snippets", "khi cua cao snippets", "cuoi cua cao snippets", "chi cua cac snippets", "chi cu cao snippets", "chi cua cay 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: (((("chi cua cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("chi cua cao snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chi cua cao snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chi cua cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.