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