Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thu nhat mo snippets" » "thu nhap mo snippets", "thu thuat mo snippets", "thu ha mo snippets", "thu nhat moi snippets", "thu nhat so snippets", "thu nhan mo 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: (((("thu nhat mo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thu nhat mo snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thu nhat mo snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thu nhat mo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.