Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"deo thanh do snippets" » "de thanh do snippets", "dao thanh do snippets", "den thanh do snippets", "deo thanh pho snippets", "deo thanh hoa snippets", "deo thanh loi 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: (((("deo thanh do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("deo thanh do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( deo thanh do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("deo thanh do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.