Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"vay danh du snippets" » "vay doanh du snippets", "va danh du snippets", "van danh du snippets", "vay danh dau snippets", "vay danh tu snippets", "vay dinh du 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: (((("vay danh du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("vay danh du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( vay danh du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("vay danh du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.