Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dan quoc ve snippets" » "dang quoc ve snippets", "han quoc ve snippets", "tran quoc ve snippets", "dan quoc te snippets", "dan nuoc ve snippets", "dan quoc va 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: (((("dan quoc 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: (((("dan quoc ve snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dan quoc ve snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dan quoc ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.