Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"trinh ve chi snippets" » "trinh ve code snippets", "trinh he chi snippets", "trinh va chi snippets", "trinh vi chi snippets", "trinh ve chim snippets", "trinh ke chi snippets", "trinh ve cai 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: (((("trinh ve chi snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("trinh ve chi snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( trinh ve chi snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trinh ve chi snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.