Perhaps you should try some spelling variations:
"using rate code snippets" » "using waste code snippets", "using data code snippets", "using raw code snippets"
"cho trinh java snippets" » "co trinh java snippets", "tho trinh java snippets", "cho sinh java snippets"
"locating bug core snippets" » "locating bug code 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 rate code snippets") or ("cho trinh java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using rate code snippets") OR ("cho trinh java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( using rate code snippets ) or ( cho trinh java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using rate code snippets") or ("cho trinh java snippets"))) or ("locating bug core snippets"))*.