Perhaps you should try some spelling variations:
thuat lanh » thuat lap, thuat san
cac nuoc » cap nuoc, hoc nuoc, dat nuoc
danh va » doanh va, hanh va, dan va
hieu ve » hieu va, hieu van
cua tre » cua te, cuu tre, cua triet
nang xa » lang xa, nang ma, mang xa
lanh y » anh y, hanh y, lanh lay
ve cac » va cac, vien cac
anh va » hanh va

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuat lanh y ((nang xa) or (nang x)) hoi. hieu ve cac nuoc va ((danh va) or (anh va)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat lanh y ((nang xa) OR (nang x)) hoi. hieu ve cac nuoc va ((danh va) OR (anh va)) cua tre.
• Adding a wildcard symbol may retrieve word variants: thuat lanh y ((nang xa) or (nang x)) hoi. hieu ve cac nuoc va ((danh va) or (anh va)) cua tre*.