Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thi tan du snippets" » "thi tran du snippets", "thi than du snippets", "thi lan du snippets", "thi toan du snippets", "thi tang du snippets", "thi van du 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: (((("thi tan du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thi tan du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thi tan du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thi tan du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.