Perhaps you should try some spelling variations:
thuat mach » thuat sach, thuat tach, thuyet mach
trinh qua » trinh quan, trinh quang, trinh luat
trinh cua » tinh cua, trinh luat, trinh quan
dung dong » dung cong, vung dong, dung trong
ho thuat » hoc thuat, ho thuan, khoi thuat
dong anh » hong anh, dong thanh, hoang anh
anh toan » manh toan, anh tuan, thanh toan
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: ho thuat mach - hanh ((trinh qua) or (trinh cua)) dung dong anh toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho thuat mach - hanh ((trinh qua) OR (trinh cua)) dung dong anh toan cau.
• Adding a wildcard symbol may retrieve word variants: ho thuat mach - hanh ((trinh qua) or (trinh cua)) dung dong anh toan cau*.