Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"hong li doi snippets" » "cong li doi snippets", "hong le doi snippets", "thong le doi snippets", "hong li dai snippets", "hong ly doi snippets", "hong lieu doi 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 li doi 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 li doi snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hong li doi snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hong li doi snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.