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