Perhaps you should try some spelling variations:
thiet tach » chiet tach, thien hach, thuat tach
trang tuan » tran tuan, trung tuan, trong tuan
trang qua » trong qua, trong quan, trung quan
cong vang » cong lang, cong quang, cong ngang
so thiet » soc thiet, hoc thiet, hoa thiet
vang tay » vung tay, bang tay, mang tay
tay co » ty co, cay co, tay o

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

• Performing a fuzzy search may retrieve terms with similar spellings: so thiet tach - hanh ((trang qua) or (trang tuan)) trong cong vang tay co~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so thiet tach - hanh ((trang qua) OR (trang tuan)) trong cong vang tay co.
• Adding a wildcard symbol may retrieve word variants: so thiet tach - hanh ((trang qua) or (trang tuan)) trong cong vang tay co*.