Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"hong anh cho snippets" » "hoang anh cho snippets", "hong hanh cho snippets", "dong anh cho snippets", "hong danh cho snippets", "hong anh tho snippets", "hong anh co 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 anh cho 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 anh cho snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hong anh cho snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hong anh cho snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.