Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhung co can snippets" » "nhung con can snippets", "nhung bo can snippets", "chung co can snippets", "nhung cho can snippets", "nhung co ban snippets", "nhung co dan 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: (((("nhung co can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nhung co can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhung co can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhung co can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.