Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khat hoa cau snippets" » "khat khoa cau snippets", "chat hoa cau snippets", "khat ha cau snippets", "khat hoa cac snippets", "khat hoa dau snippets", "khat hoa mau 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: (((("khat hoa 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: (((("khat hoa cau snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khat hoa cau snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khat hoa cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.