Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thu minh cau snippets" » "thi minh cau snippets", "chi minh cau snippets", "vu minh cau snippets", "thu minh chau snippets", "thu sinh cau snippets", "thu minh can 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 minh 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 minh cau snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thu minh cau snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thu minh cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.