Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cua minh hoa snippets" » "cua sinh hoa snippets", "cua tinh hoa snippets", "cua kinh hoa snippets", "cua minh hoang snippets", "cua trinh hoa snippets", "cua sinh hoat 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: (((("cua minh hoa snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cua minh hoa snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cua minh hoa snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cua minh hoa snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.