Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"thu hanh da snippets" » "thu hanh code snippets", "thuc hanh da snippets", "thu thanh da snippets", "thuy hanh da snippets", "thu hanh dao snippets", "thu hanh dua snippets", "thu hanh va 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 hanh da 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 hanh da snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( thu hanh da snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thu hanh da snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.