Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cua cha doan snippets" » "cua chan doan snippets", "cua chuan doan snippets", "cua cho doanh snippets", "cua chu doan snippets", "cua nha doan snippets", "chua chay doan 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: (((("cua cha doan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cua cha doan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cua cha doan snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cua cha doan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.