Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"son tang co snippets" » "son tung co snippets", "son thanh co snippets", "nen tang co snippets", "son tang cho snippets", "son nang co snippets", "son tang o 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 tang co 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 tang co snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( son tang co snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("son tang co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.