Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"doan minh ve snippets" » "doan hinh ve snippets", "doan tinh ve snippets", "hoang minh ve snippets", "doan dinh ve snippets", "doan minh va snippets", "doan kinh 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 minh 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 minh ve snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doan minh ve snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doan minh ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.