Perhaps you should try some spelling variations:
"trinh thuc code snippets" » "trinh tu code snippets", "trinh thi code snippets", "trinh thuc co snippets", "trinh thuc con snippets"
"dong vat co snippets" » "dong va co snippets", "dong von co snippets", "dong ha co snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("trinh thuc code snippets") or ("dong vat co snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("trinh thuc code snippets") OR ("dong vat co snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trinh thuc code snippets ) or ( dong vat co snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trinh thuc code snippets") or ("dong vat co snippets"))) or ("locating bug code snippets"))*.