Perhaps you should try some spelling variations:
vu khach » vu khanh, vu khac, vay khach
khach ky » hanh ky, thanh ky
su triet » su viet, su tien, ve triet
dang xay » dang van, van xay
xay hoi » xa hoi, tay hoi, cay phoi
hieu ve » hieu van
ky dang » ky nang, ky danh
hieu va » hieu qua
coc tuc » coc luc, hoc thuc, doc thuc
xa tinh » va tinh, ha tinh, ca tinh
tinh va » tich va, trinh van, trinh vat

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu khach ky dang xay hoi. ((hieu ve) or (((hieu va) OR (lieu va)))) coc tuc xa tinh va su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu khach ky dang xay hoi. ((hieu ve) OR (((hieu va) OR (lieu va)))) coc tuc xa tinh va su triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu khach ky dang xay hoi. ((hieu ve) or (((hieu va) OR (lieu va)))) coc tuc xa tinh va su triet*".