Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cua sinh con snippets" » "cho sinh con snippets", "hoa sinh con snippets", "va sinh con snippets", "cua sinh cong snippets", "cua sinh ton snippets", "cua sinh co 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: (((("cua sinh con snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cua sinh con snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cua sinh con snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cua sinh con snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.