Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"thu canh cac snippets" » "thu canh code snippets", "thuc hanh cac snippets", "thu cong cac snippets", "thu ban cac snippets", "thu canh tac snippets", "thu hanh cac snippets", "thu canh giac 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: (((("thu canh cac snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thu canh cac snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( thu canh cac snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thu canh cac snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.