Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"n trinh toan snippets" » "n trinh code snippets", "n tinh toan snippets", "n thanh toan snippets", "n trinh han snippets", "p trinh toan snippets", "anh trinh toan snippets", "dan trinh toan 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: (((("n trinh toan snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("n trinh toan snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( n trinh toan snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("n trinh toan snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.