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