Perhaps you should try some spelling variations:
va trinh » van trinh, va tinh, qua trinh
su triet » su viet, su tien, ve triet
vu sach » vu bach, su sach, vu khach
sach ky » sac ky, sach y, sach ty
cao hoi » cau hoi, co hoi, cao hoc
cam duc » cam xuc, cao duc, pham duc
va cam » va cham, va cac, va cao
vi su » va su, ve su, ki su

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu sach ky nang cao hoi. lieu va cam duc ((va trinh) OR (lap trinh)) vi su triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach ky nang cao hoi. lieu va cam duc ((va trinh) OR (lap trinh)) vi su triet".
• Adding a wildcard symbol may retrieve word variants: vu sach ky nang cao hoi. lieu va cam duc ((va trinh) OR (lap trinh)) vi su triet*.