Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khao co dong snippets" » "khac co dong snippets", "khao cuu dong snippets", "khao noi dong snippets", "khao o dong snippets", "khao cong dong snippets", "khao lao dong 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: (((("khao co dong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("khao co dong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khao co dong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khao co dong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.