Perhaps you should try some spelling variations:
chau triet » cau triet, cua triet, cau trieu
cham luoc » cham soc, khai luoc, kham cuoc
van hanh » van thanh, van anh, van ban
ban hanh » ban hang
vu sach » vu bach, su sach, vu khach
sach ky » sac ky, sach y, sach ty
nang xa » lang xa, nang ma, mang xa
va cham » va chat, va tham

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 xa) or (nang x)) hoi. lieu va cham luoc ((van hanh) OR (ban hanh)) lai chau triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach ky ((nang xa) OR (nang x)) hoi. lieu va cham luoc ((van hanh) OR (ban hanh)) lai chau triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach ky ((nang xa) or (nang x)) hoi. lieu va cham luoc ((van hanh) OR (ban hanh)) lai chau triet".
• Adding a wildcard symbol may retrieve word variants: vu sach ky ((nang xa) or (nang x)) hoi. lieu va cham luoc ((van hanh) OR (ban hanh)) lai chau triet*.