Perhaps you should try some spelling variations:
"lua lam dong snippets" » "lua lam code snippets", "lua lao dong snippets", "lua lam sang snippets", "lua ha dong snippets", "luc lam dong snippets", "cua lam dong snippets", "lua lai dong snippets"
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"

Try widening your search to All Fields.

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 lam dong 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 lam dong snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( lua lam dong snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("lua lam dong snippets"))) or ("locating bug core snippets"))*.