Perhaps you should try some spelling variations:
canh trinh » canh tranh, hanh trinh, canh tinh
thong cong » trong cong, tong cong, thong thong
mot chieu » doi chieu, ho chieu
hoc thieu » toc thieu, hoc hien
trinh tam » trinh tai, trinh toan, trinh cham
tam thong » tam thuong, tao thong, nam thong
trinh hoa » trinh do, trinh han
hoa cao » hoc cao, hoa co, hoa cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((mot chieu) or (hoc thieu)) tinh - canh trinh tam thong cong trinh hoa cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((mot chieu) OR (hoc thieu)) tinh - canh trinh tam thong cong trinh hoa cao.
• Adding a wildcard symbol may retrieve word variants: ((mot chieu) or (hoc thieu)) tinh - canh trinh tam thong cong trinh hoa cao*.