Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
manh trung » manh tung, thanh trung, manh hung
trinh toan » tinh toan, thanh toan, trinh han
hoc thieu » toc thieu
trung cua » truong cua, trung tuan, trung cap
cua thong » cua thuong, cua khong, cua tong
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 thieu) or (hoc hien)) xanh - manh trung cua thong cong trinh toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thieu) OR (hoc hien)) xanh - manh trung cua thong cong trinh toan cau.
• Adding a wildcard symbol may retrieve word variants: ((hoc thieu) or (hoc hien)) xanh - manh trung cua thong cong trinh toan cau*.