Perhaps you should try some spelling variations:
trinh thanh » tinh thanh, trinh han, trinh toan
trinh dinh » trinh kinh, trinh sinh, trinh dung
nhung cong » dung cong, thong cong, hang cong
hoc thiet » hoc thieu, hoc thuyet, hoc hien
ho chiet » ho chieu, ho thiet, hoa thiet
cong anh » cong danh, dong anh, hong anh
tuan cau » toan cau, quan cau, tuan cu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho chiet) or (hoc thiet)) tach - hanh ((trinh thanh) or (trinh dinh)) nhung cong anh tuan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chiet) OR (hoc thiet)) tach - hanh ((trinh thanh) OR (trinh dinh)) nhung cong anh tuan cau.
• Adding a wildcard symbol may retrieve word variants: ((ho chiet) or (hoc thiet)) tach - hanh ((trinh thanh) or (trinh dinh)) nhung cong anh tuan cau*.