Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ngoc sy can snippets" » "ngoc ly can snippets", "ngo sy can snippets", "ngoc my can snippets", "ngoc su can snippets", "ngoc sy ca 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: (((("ngoc sy 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: (((("ngoc sy can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ngoc sy can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ngoc sy can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.