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