Perhaps you should try some spelling variations:
"luong cac chet snippets" » "luong cac code snippets", "luong cuoc chet snippets", "luong va chet snippets", "luong tai chet snippets", "luong cac chat snippets", "luong cac che snippets", "luong cai chet snippets"
"locating bug core snippets" » "locating bug code snippets"
"dung java java snippets" » "dung va java 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: (((("luong cac chet snippets") or ("dung java java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("luong cac chet snippets") OR ("dung java java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( luong cac chet snippets ) or ( dung java java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luong cac chet snippets") or ("dung java java snippets"))) or ("locating bug core snippets"))*.