Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"duc tham cau snippets" » "duc pham cau snippets", "duc kham cau snippets", "duc tam cau snippets", "duc tham canh snippets", "duc toan cau snippets", "duc cham cuu 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: (((("duc tham 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: (((("duc tham cau snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( duc tham cau snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("duc tham cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.