Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chon tao den snippets" » "che tao den snippets", "cho dao den snippets", "nhan tao den snippets", "chon tao nen snippets", "chon dao den snippets", "chon tac den 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: (((("chon tao den snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("chon tao den snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chon tao den snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chon tao den snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.