Perhaps you should try some spelling variations:
"lua dan chan snippets" » "lua dan code snippets", "lua dan gian snippets", "lua dan ca snippets", "lua van chat snippets", "luat dan chan snippets", "cua dan chan snippets", "luu dan chan 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 chan 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 chan snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( lua dan chan snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("lua dan chan snippets"))) or ("locating bug core snippets"))*.