Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"kho doanh co snippets" » "cho doanh co snippets", "kho danh co snippets", "kihn doanh co snippets", "kho doanh cua snippets", "kho doanh va snippets", "kho anh co 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: (((("kho doanh co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("kho doanh co snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( kho doanh co snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("kho doanh co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.