Perhaps you should try some spelling variations:
thanh trung » thanh tung
tieu sach » chieu sach, dien sach, te sach
trong tap » trong thap, tong tap, trong tan
cap dung » cao dung, chan dung, cach dung
tap phan » tai phan, cap phan, tap pham
phan dau » phan tu, hang dau
ap dung » xay dung, van dung

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo tieu sach - thanh trung ((cap dung) OR (ap dung)) trong tap phan dau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu sach - thanh trung ((cap dung) OR (ap dung)) trong tap phan dau".
• Adding a wildcard symbol may retrieve word variants: theo tieu sach - thanh trung ((cap dung) OR (ap dung)) trong tap phan dau*.