Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tao duc tre snippets" » "tao duoc tre snippets", "dao duc tre snippets", "tho duc tre snippets", "tao duoc tren snippets", "tao duc tien 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: (((("tao duc 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: (((("tao duc tre snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tao duc tre snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tao duc tre snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.