Perhaps you should try some spelling variations:
tham luc » than luc, tham nuoc, tham thuc
thanh va » thanh van, hanh va, thanh ha
thanh vi » hanh vi, thanh ve, nhanh vi
luc van » luoc van, luu van, duc van
vu sach » vu bach, su sach, vu khach
nang xa » lang xa, nang ma, mang xa
va tham » van tham, va cham, va thanh
cua tre » cua te, cuu tre, cua triet

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 xa) or (nang x)) hoi. lieu va tham luc van ((thanh vi) OR (thanh va)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach y ((nang xa) OR (nang x)) hoi. lieu va tham luc van ((thanh vi) OR (thanh va)) cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach y ((nang xa) or (nang x)) hoi. lieu va tham luc van ((thanh vi) OR (thanh va)) cua tre".
• Adding a wildcard symbol may retrieve word variants: vu sach y ((nang xa) or (nang x)) hoi. lieu va tham luc van ((thanh vi) OR (thanh va)) cua tre*.