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