Perhaps you should try some spelling variations:
giau cua » gian cua, gia cua, dieu cua
van hanh » van thanh, ban hanh, van anh
luc van » luoc van, luu van, duc van
ca chua » ca cua, sua chua
cac luc » cau luc, coc luc, cac nuoc
hieu ve » hieu va, hieu van
nang ma » tang ma, sang ma, nang cao
te sach » toc sach
ve cac » va cac, vien cac
ma hoi » mai hoi, xa hoi, ma hoa

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu cac) or (te sach)) ky nang ma hoi. hieu ve cac luc van hanh ((ca chua) or (giau cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu cac) OR (te sach)) ky nang ma hoi. hieu ve cac luc van hanh ((ca chua) OR (giau cua)) tre.
• Adding a wildcard symbol may retrieve word variants: ((tu cac) or (te sach)) ky nang ma hoi. hieu ve cac luc van hanh ((ca chua) or (giau cua)) tre*.