Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"using sat cong snippets" » "using data cong snippets", "using a cong snippets", "using raw cong snippets", "using bat cong snippets", "using san cong snippets", "using luat cong snippets"
"doc trinh java snippets" » "doc tinh java snippets", "doi trinh java snippets", "hoc trinh java 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 sat cong snippets") or ("doc trinh java snippets"))) or ("locating bugs code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using sat cong snippets") OR ("doc trinh java snippets"))) OR ("locating bugs code snippets")).
• Removing quotes may allow a broader search: (((( using sat cong snippets ) or ( doc trinh java snippets ))) or ( locating bugs code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using sat cong snippets") or ("doc trinh java snippets"))) or ("locating bugs code snippets"))*.