Perhaps you should try some spelling variations:
sang khoan » hang khoa, san khoa, sang than
hanh trung » thanh trung, hanh trang, manh trung
hanh tinh » hanh trinh, nhanh tinh, thanh tinh
tang cong » tang cuong, trang cong, dang cong
cong sang » cong san, cong lang, cong vang
khoan cam » khoa cam, khoan va, phan cam
thi hanh » thi thanh
trung ha » trung hoc, trung tam, trung cap
ha tang » phap tang, cao tang, kho tang

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: thi hanh tinh - hanh trung ha tang cong sang khoan cam~.
• Adding a wildcard symbol may retrieve word variants: thi hanh tinh - hanh trung ha tang cong sang khoan cam*.