Perhaps you should try some spelling variations:
cham nuoc » tham nuoc, nha nuoc, cham soc
nuoc van » nuoc va, nuoc san, luoc van
van hanh » van thanh, ban hanh, van anh
vu sach » vu bach, su sach, vu khach
nang ma » sang ma, nang cao, mang may
tang ma » mang may, tang van
va cham » va chat, va tham
cua tre » cuu tre, cua triet, dua tren
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: vu sach y ((nang ma) or (tang ma)) hoi. lieu va cham nuoc van hanh vi ((cua tre) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach y ((nang ma) OR (tang ma)) hoi. lieu va cham nuoc van hanh vi ((cua tre) OR (cua te)).
• Adding a wildcard symbol may retrieve word variants: vu sach y ((nang ma) or (tang ma)) hoi. lieu va cham nuoc van hanh vi ((cua tre) or (cua te))*.