Perhaps you should try some spelling variations:
"lua dan canh snippets" » "lua dan code snippets", "lua van canh snippets", "lua dan cach snippets", "lua dan hanh snippets", "luat dan canh snippets", "cua dan canh snippets", "luu dan canh snippets"
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("python using java snippets") or ("lua dan canh snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("lua dan canh snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( lua dan canh snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("lua dan canh snippets"))) or ("locating bug core snippets"))*.