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