Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tri dau chan snippets" » "tri dan chan snippets", "tri cau chan snippets", "tri mau chan snippets", "tri du chan snippets", "tri dac chan snippets", "thi dau chan 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: (((("tri dau chan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tri dau chan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tri dau chan snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tri dau chan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.