Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
trung cua » truong cua, trung tuan, trung cap
tran xuan » tran quang, tran van
cong manh » cong danh, duong manh, cong thanh
manh toan » thanh toan, anh tuan, tinh toan
hien anh » hien hanh, thien anh, tien anh
dien anh » tieng anh, dien dan
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 ((hien anh) or (dien anh)) - thanh ((trung cua) or (tran xuan)) thong cong manh toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien anh) OR (dien anh)) - thanh ((trung cua) OR (tran xuan)) thong cong manh toan cau.
• Adding a wildcard symbol may retrieve word variants: hoc ((hien anh) or (dien anh)) - thanh ((trung cua) or (tran xuan)) thong cong manh toan cau*.