Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cau hai moi snippets" » "cau hoi moi snippets", "cau hat moi snippets", "cau ha moi snippets", "cau hai muoi snippets", "cau dai moi snippets", "cau nhat moi 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: (((("cau hai moi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cau hai moi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cau hai moi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cau hai moi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.