Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"duong cac dk snippets" » "luong cac dk snippets", "dung cac dk snippets", "cuong cac dk snippets", "duong cac du snippets", "duong cac di 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: (((("duong cac dk snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("duong cac dk snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( duong cac dk snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("duong cac dk snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.