Perhaps you should try some spelling variations:
thuat san » thuat song, thuat lanh, thuat xay
cam truc » cau truc, nam truc, lam truoc
cua viet » ca viet, hoa viet, cua dieu
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
hieu va » lieu va, hieu qua
truc va » thuc va, thuc vat, trung va
va hanh » van hanh, va thanh, va danh
hanh di » hanh vi, hanh de, hang di
va cam » va cham, va cac, va cao

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((thuat san) OR (thuat toan)) ky lang xa hoi. hieu va cam truc va hanh di ((cua viet) or (cua vat))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thuat san) OR (thuat toan)) ky lang xa hoi. hieu va cam truc va hanh di ((cua viet) OR (cua vat)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((thuat san) OR (thuat toan)) ky lang xa hoi. hieu va cam truc va hanh di ((cua viet) or (cua vat))".
• Adding a wildcard symbol may retrieve word variants: ((thuat san) OR (thuat toan)) ky lang xa hoi. hieu va cam truc va hanh di ((cua viet) or (cua vat))*.