Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"duc thinh cu snippets" » "duc thanh cu snippets", "quoc thinh cu snippets", "duc minh cu snippets", "duc trinh cau snippets", "duc trinh cua snippets", "duc trinh chu 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 thinh cu 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 thinh cu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( duc thinh cu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("duc thinh cu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.