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