Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cho quang do snippets" » "chu quang do snippets", "che quang do snippets", "pho quang do snippets", "cho quang d snippets", "cho quang de snippets", "cho quang dong 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: (((("cho quang 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: (((("cho quang do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cho quang do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cho quang do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.