Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dong chi cua snippets" » "dong cho cua snippets", "dong thi cua snippets", "dung chi cua snippets", "dong chi cuc snippets", "dong khi cua snippets", "dong cuoi 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 chi 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 chi cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dong chi cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong chi cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.