Perhaps you should try some spelling variations:
"using low code snippets" » "using low cost snippets", "using lbm code snippets", "using low dose snippets", "using low code slippers"
"cong trinh java snippets" » "cong trinh java slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code 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: (((("using low code snippets") or ("cong trinh java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using low code snippets") OR ("cong trinh java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( using low code snippets ) or ( cong trinh java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using low code snippets") or ("cong trinh java snippets"))) or ("locating bug code snippets"))*.