Perhaps you should try some spelling variations:
"khoan duoc 2 snippets" » "khoa duoc 2 snippets", "hoa duoc 2 snippets", "khoa quoc 2 snippets", "khoan doc 2 snippets", "khoan duoc 1 snippets", "khoan duoc 9 snippets", "khoan duoc 2 slippers"
"python using java snippets" » "python using data snippets", "python using java slippers"
"locating bug code snippets" » "locating bug code slippers", "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: (((("khoan duoc 2 snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("khoan duoc 2 snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khoan duoc 2 snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khoan duoc 2 snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.