Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"trong va chat snippets" » "trong van chat snippets", "trong ca chat snippets", "trong cac chat snippets", "trong va phat snippets", "trong va cham 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 va chat 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 va chat snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trong va chat snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trong va chat snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.