Perhaps you should try some spelling variations:
"trong luong ve snippets" » "trong tuong ve snippets", "thuong luong ve snippets", "trong thuong ve snippets", "trong luong va snippets", "trong duong ve snippets", "trong long ve snippets"
"dung java java snippets" » "dung va java 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: (((("trong luong ve snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("trong luong ve snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trong luong ve snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trong luong ve snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.