Perhaps you should try some spelling variations:
thuat chan » thuat toan, thuat san
cua viet » ca viet, hoa viet, cua vat
chan ly » phan ly, khanh ly
va hanh » van hanh, va thanh, ban hanh
va danh » va dinh, va dan, dia danh
ly vang » ly hang, ly van, ly quang
vang x » nang x
ve cau » ke cau, ve cac, le cau
va cau » van cau, va cac, va dau
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuat chan ly vang x hoi. hieu ((ve cau) or (va cau)) truc ((va hanh) OR (va danh)) dai cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat chan ly vang x hoi. hieu ((ve cau) OR (va cau)) truc ((va hanh) OR (va danh)) dai cua viet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat chan ly vang x hoi. hieu ((ve cau) or (va cau)) truc ((va hanh) OR (va danh)) dai cua viet*".