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