Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lee sang cho snippets" » "lee liang cho snippets", "lam sang cho snippets", "luc sang cho snippets", "lee danh cho snippets", "lee dung cho snippets", "lee sang tao 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: (((("lee sang 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: (((("lee sang cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lee sang cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lee sang cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.