Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nam nhat cuc snippets" » "pham nhat cuc snippets", "am nhac cuc snippets", "cam nhan cuc snippets", "nam nhat cua snippets", "nam nhan cuoc snippets", "nam nhat nuoc 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: (((("nam nhat cuc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nam nhat cuc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nam nhat cuc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nam nhat cuc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.