Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lee gian tre snippets" » "lee gwan tre snippets", "lee jian tre snippets", "lee liang tre snippets", "lee gian tren snippets", "lee gian tra snippets", "lee gian tru 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 gian tre 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 gian tre snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lee gian tre snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lee gian tre snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.