Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"son dam cao snippets" » "san dam cao snippets", "mon dam cao snippets", "son da cao snippets", "son dam bao snippets", "son nam cao snippets", "son dam rao 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: (((("son dam cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("son dam cao snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( son dam cao snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("son dam cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.