Perhaps you should try some spelling variations:
thuat lanh » thuat lap, thuat san
thanh vi » hanh vi, thanh va, thanh ve
nang xa » lang xa, nang ma, mang xa
duc van » duc tan, duc manh, duc phan
lanh y » anh y, hanh y, lanh lay
va cam » va cham, va cac, va cao
vi cua » vai cua, di cua
cua tu » cua tuc, cua su, cua cu

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