Perhaps you should try some spelling variations:
quoc chuyen » buoc chuyen, duoc chuyen, thuoc chuyen
mach trung » manh trung, mach thuong, dac trung
thuoc sach » hoc sach, nuoc sach, thuat sach
thuoc anh » thuoc thanh, thuoc dang, thuoc sinh
khoa than » khoa luan, hoa thai, hoa tan
than cong » thanh cong, thuan cong, phan cong
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 quoc chuyen đe ky thuat: kien ((thuoc anh) OR (thuoc sach)) khoa than cong va tinh~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te mach trung quoc chuyen đe ky thuat: kien ((thuoc anh) OR (thuoc sach)) khoa than cong va tinh".
• Adding a wildcard symbol may retrieve word variants: te mach trung quoc chuyen đe ky thuat: kien ((thuoc anh) OR (thuoc sach)) khoa than cong va tinh*.