Perhaps you should try some spelling variations:
ngan dung » ngan hang, van dung, dan dung
cuu ngan » cua ngan, cuu nhan, cuu nan
cham cuu » cap cuu, chat cua
te sach » toc sach
tai cua » thai cua, tai cuc, tri cua
ve cham » va cham, ve chat, vu cham
hieu ve » hieu va, hieu van
nang ma » tang ma, sang ma, mang may
su sach » so sach, vu sach
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((te sach) or (su sach)) ky ((nang ma) OR (nang cao)) hoi. hieu ve cham cuu ngan dung tai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (su sach)) ky ((nang ma) OR (nang cao)) hoi. hieu ve cham cuu ngan dung tai cua te*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te sach) or (su sach)) ky ((nang ma) OR (nang cao)) hoi. hieu ve cham cuu ngan dung tai cua te*".