Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dong dam cua snippets" » "dong nam cua snippets", "dong dat cua snippets", "dong dao cua snippets", "dong dai cua snippets", "dong day 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 dam 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 dam cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dong dam cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong dam cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.