Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dep cong cua snippets" » "den cong cua snippets", "dien cong cua snippets", "thep cong cua snippets", "dep cong cu snippets", "dep dong cua snippets", "dep huong cua 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: (((("dep cong cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dep cong cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dep cong cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dep cong cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.