Perhaps you should try some spelling variations:
"using la chet snippets" » "using la code snippets", "using a chet snippets", "using l chet snippets", "using lc chet snippets", "using la che snippets", "using cai chet snippets", "using va chiet snippets"
"locating bug core snippets" » "locating bug code snippets"
"dung java java snippets" » "dung va java snippets"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("using la 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: (((("using la chet snippets") OR ("dung java java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( using la chet snippets ) or ( dung java java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using la chet snippets") or ("dung java java snippets"))) or ("locating bug core snippets"))*.