Perhaps you should try some spelling variations:
"tin dung code snippets" » "tin dung cong snippets", "tin dung co snippets", "tin dung de snippets", "tinh dung code snippets", "tin dung code slippers"
"long cuc code snippets" » "long cua code snippets", "tong cuc code snippets", "luong cuoc code snippets", "long cfd code snippets", "long cuc code slippers"
"locating bug code snippets" » "locatinhg bug code snippets", "locating bug code slippers", "locating bung code snippets", "locating bugs code 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: (((("tin dung code snippets") or ("long cuc code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tin dung code snippets") OR ("long cuc code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tin dung code snippets ) or ( long cuc code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tin dung code snippets") or ("long cuc code snippets"))) or ("locating bug code snippets"))*.