Perhaps you should try some spelling variations:
thuc chuyen » thuoc chuyen, chuc chuyen, thuc huyen
mach trung » manh trung, mach thuong, dac trung
trung thuc » trong thuc, trang thuc, thuong thuc
kien thuoc » kien thuc, trien thuoc, kien truc
bien thuoc » bien thuc, trien thuoc, kien thuc
khoa than » khoa luan, hoa thai, hoa tan
than cong » thanh cong, thuan cong, phan cong
anh khoa » doanh khoa, hang khoa
te mach » ke mach, te sach, tim mach
cong va » dong va, cong ha, cong tac
va tinh » may tinh

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

• Performing a fuzzy search may retrieve terms with similar spellings: te mach trung thuc chuyen đe ky thuat: ((kien thuoc) OR (bien thuoc)) anh khoa than cong va tinh~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te mach trung thuc chuyen đe ky thuat: ((kien thuoc) OR (bien thuoc)) anh khoa than cong va tinh".
• Adding a wildcard symbol may retrieve word variants: te mach trung thuc chuyen đe ky thuat: ((kien thuoc) OR (bien thuoc)) anh khoa than cong va tinh*.