Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khi tuong ho snippets" » "khai thuong ho snippets", "khoi truong ho snippets", "thi truong ho snippets", "khi tong hop 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: (((("khi tuong ho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("khi tuong ho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khi tuong ho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khi tuong ho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.