Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khung cua ve snippets" » "chung cua ve snippets", "khung luan ve snippets", "chung cu ve snippets", "khung cua vi snippets", "khung cua te snippets", "khung cua vu 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: (((("khung cua ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("khung cua ve snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khung cua ve snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khung cua ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.