Perhaps you should try some spelling variations:
"thong hoang do snippets" » "phuong hoang do snippets", "thong thong do snippets", "khung hoang do snippets", "thong hoang de snippets", "thong hoang da snippets", "thong hoang du 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: (((("thong hoang do snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thong hoang do snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thong hoang do snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thong hoang do snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.