Perhaps you should try some spelling variations:
va thanh » gia thanh, ban thanh, va tinh
su triet » su viet, su tien, ve triet
vu sach » su sach, vu khach
thi van » thi lan, thi hanh, thi nang
van cam » van nam, van lam, van cau
cam thu » nam thu, cac thu, ca thu
va dinh » van dinh, va kinh, va tinh
ki su » ky 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) OR (vu bach)) ky nang x ho. thi van cam thu ((va thanh) or (va dinh)) ki su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((vu sach) OR (vu bach)) ky nang x ho. thi van cam thu ((va thanh) OR (va dinh)) ki su triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((vu sach) OR (vu bach)) ky nang x ho. thi van cam thu ((va thanh) or (va dinh)) ki su triet*".