Perhaps you should try some spelling variations:
"thi trinh java snippets" » "tho trinh java snippets", "thi thanh java snippets", "thi minh java snippets"
"cong dung co snippets" » "cuong dung co snippets", "cong dong co snippets", "cong luong co snippets", "cong dung cho snippets", "cong dung cong snippets", "cong dung cua 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: (((("thi trinh java snippets") or ("cong dung co snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thi trinh java snippets") OR ("cong dung co snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thi trinh java snippets ) or ( cong dung co snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thi trinh java snippets") or ("cong dung co snippets"))) or ("locating bug code snippets"))*.