Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
dang xay » dang van, van xay
chat cua » nhat cua, chat va, chat huu
vat hanh » vat thanh, van hanh, va hanh
cau tren » cu tren, ca tren, cau treo
dau tren » dau tien, dat tren, dau tieng
lang xa » lang ha, lang van
va chat » van chat, va phat, cao chat
hanh va » hang va, hanh vi

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuat sach y ((lang xa) or (dang xay)) hoi. lieu va chat cua vat hanh va ((cau tren) or (dau tren))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sach y ((lang xa) OR (dang xay)) hoi. lieu va chat cua vat hanh va ((cau tren) OR (dau tren)).
• Adding a wildcard symbol may retrieve word variants: thuat sach y ((lang xa) or (dang xay)) hoi. lieu va chat cua vat hanh va ((cau tren) or (dau tren))*.