Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"lua hang cau snippets" » "lua hang code snippets", "cua hang cau snippets", "lua sang cau snippets", "mua hang cau snippets", "lua hang dau snippets", "lua hang ca snippets", "lua nhung cau 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: (((("lua hang cau snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("lua hang cau snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( lua hang cau snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lua hang cau snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.