Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cho dong du snippets" » "cho cong du snippets", "co dong du snippets", "pho dong du snippets", "cho dong tu snippets", "cho dong da snippets", "cho dong su 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 dong 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: (((("cho dong du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cho dong du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cho dong du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.