Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu xanh » chieu sach, chieu sang, chieu tinh
nhung cong » dung cong, thong cong, hang cong
trung vap » trung cap, trung va, trung van
vap nhung » va nhung, ve nhung, voi nhung
cong tinh » cong trinh, cong vinh, long tinh
toan cau » toan cao, toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((dieu hanh) or (chieu xanh)) - thanh trung vap nhung cong tinh toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((dieu hanh) OR (chieu xanh)) - thanh trung vap nhung cong tinh toan cau.
• Adding a wildcard symbol may retrieve word variants: hoc ((dieu hanh) or (chieu xanh)) - thanh trung vap nhung cong tinh toan cau*.