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