Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"van giao doi snippets" » "nang giao doi snippets", "toan giao doi snippets", "dan gian doi snippets", "van gia doi snippets", "van giao duc snippets", "van giao li 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: (((("van giao doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("van giao doi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( van giao doi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("van giao doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.