Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"son lan cho snippets" » "son la cho snippets", "son van cho snippets", "song lanh cho snippets", "son san cho snippets", "son han cho 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 lan cho 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 lan cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( son lan cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("son lan cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.