Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"tri trinh co snippets" » "tri trinh code snippets", "tra trinh co snippets", "thi trinh co snippets", "tri tinh co snippets", "tri trinh do snippets", "tri trinh cong snippets", "tri trinh hoa 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: (((("tri trinh co snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tri trinh co snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( tri trinh co snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tri trinh co snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.