Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dong nhu cua snippets" » "song nhu cua snippets", "dang nhu cua snippets", "bong nhu cua snippets", "dong hu cua snippets", "dong ngu cua snippets", "dong thu 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: (((("dong nhu 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: (((("dong nhu cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dong nhu cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong nhu cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.