Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tao cuu hoan snippets" » "tao luu hoang snippets", "tao cuu van snippets", "tao cuu khoa snippets", "tao cu hoan snippets", "tao cau hoan snippets", "khao cuu hoan 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: (((("tao cuu hoan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tao cuu hoan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tao cuu hoan snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tao cuu hoan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.