Perhaps you should try some spelling variations:
"nhanh lang co snippets" » "nhanh quang co snippets", "nhanh thang co snippets", "nhan dang co snippets", "nhanh lang o snippets", "nhanh nang co snippets", "nhanh tang co snippets"
"hang java java snippets" » "hang va java 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: (((("nhanh lang co snippets") or ("hang java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nhanh lang co snippets") OR ("hang java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhanh lang co snippets ) or ( hang java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhanh lang co snippets") or ("hang java java snippets"))) or ("locating bug code snippets"))*.