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