Perhaps you should try some spelling variations:
thuong thong » thong thong, thuong trong, thuong phuong
thong tac » thong cac, tuong tac, thong tai
cua tinh » va tinh, ha tinh, hoa tinh
cua sinh » hoa sinh, va sinh
hanh san » thanh san, khach san, thanh son
tac toan » tap toan, tam toan, hach toan
toan ban » van ban
san va » san van, ban va, dan va

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

• Performing a fuzzy search may retrieve terms with similar spellings: moc ((cua tinh) OR (cua sinh)) - hanh san va thuong thong tac toan ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "moc ((cua tinh) OR (cua sinh)) - hanh san va thuong thong tac toan ban".
• Adding a wildcard symbol may retrieve word variants: moc ((cua tinh) OR (cua sinh)) - hanh san va thuong thong tac toan ban*.