Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tu trao ho snippets" » "tu thao ho snippets", "tu trac ho snippets", "tan trao ho snippets", "tu trao tho snippets", "tu tao ho 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: (((("tu trao ho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tu trao ho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tu trao ho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tu trao ho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.