Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ung su can snippets" » "dung su can snippets", "rung su can snippets", "ung xu can snippets", "ung su van snippets", "ung su cao snippets", "ung su han 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: (((("ung su 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: (((("ung su can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ung su can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ung su can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.