Perhaps you should try some spelling variations:
"lua nam cham snippets" » "lua nam code snippets", "lua nang cham snippets", "lua nam chi snippets", "lua nam cao snippets", "cua nam cham snippets", "luc nam cham snippets", "loai nam cham 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 nam cham 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 nam cham snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( lua nam cham snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("lua nam cham snippets"))) or ("locating bug core snippets"))*.