Perhaps you should try some spelling variations:
"hong danh ca snippets" » "thong danh ca snippets", "hong hanh ca snippets", "hong anh ca snippets", "hong dan ca snippets", "hong doanh cua snippets", "hong danh cho 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: (((("hong danh ca snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hong danh ca snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hong danh ca snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hong danh ca snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.