Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thi kiem cap snippets" » "thi kim cap snippets", "thi lien cap snippets", "thi hien cap snippets", "thi diem cap snippets", "thi diem cau snippets", "thi kiem va 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 kiem cap 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 kiem cap snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thi kiem cap snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thi kiem cap snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.