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