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