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