Perhaps you should try some spelling variations:
"truong anh cong snippets" » "trong anh cong snippets", "trung anh cong snippets", "truong thanh cong snippets", "truong hanh cong snippets", "truong anh dong snippets"
"dong cac code snippets" » "duong cac code snippets", "dong bac code snippets", "dung cac code snippets", "dong cac cong snippets", "dong cac co snippets", "dong cac che snippets"
"locating bug code snippets" » "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: (((("truong anh cong snippets") or ("dong cac code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("truong anh cong snippets") OR ("dong cac code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( truong anh cong snippets ) or ( dong cac code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("truong anh cong snippets") or ("dong cac code snippets"))) or ("locating bug code snippets"))*.