Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"thpt tran tu snippets" » "thpt thang tu snippets", "thi tran tu snippets", "thpt dan tu snippets", "thpt tran tuan snippets", "thpt tran thuy snippets", "thpt tran thi 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: (((("thpt tran tu snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thpt tran tu snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( thpt tran tu snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thpt tran tu snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.