Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chua dau can snippets" » "chua cau can snippets", "chua dac can snippets", "chua dan can snippets", "chua hau can snippets", "chua dau cay snippets", "chua dieu can 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: (((("chua dau can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("chua dau can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chua dau can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chua dau can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.