Perhaps you should try some spelling variations:
tran thong » toan thong, tran hong, tran trong
thuat tach » thuat sach, thuat mach, thuat thanh
thong cong » trong cong, tong cong, thong thong
thuat tac » thuat tao, thuat tai, thuat tam
manh tran » manh toan, manh tuan, canh tranh
tran tran » tan tran, tran tuan, tran tan
cong tinh » cong trinh, cong vinh, long tinh
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((thuat tach) or (thuat tac)) - manh tran tran thong cong tinh toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((thuat tach) OR (thuat tac)) - manh tran tran thong cong tinh toan ban.
• Adding a wildcard symbol may retrieve word variants: ho ((thuat tach) or (thuat tac)) - manh tran tran thong cong tinh toan ban*.