Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cho hang rok snippets" » "cho thanh rok snippets", "cho phan rok snippets", "thi hang rok snippets", "cho hang hoa snippets", "cho hang ton 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: (((("cho hang rok snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cho hang rok snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cho hang rok snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cho hang rok snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.