Perhaps you should try some spelling variations:
than cua » nhan cua, thai cua, ban cua
te sach » toc sach
cao luc » bao luc, cao duc, cao suc
tai cua » thai cua, tai cuc, tri cua
van han » van hanh, van phan, van nhan
luc van » luoc van, luu van, duc van
qua cao » qua cac, qua ca, qua cai
tang xa » trang xa, tang ma, lang xa
ky tang » ky nang, ky dang, kho tang
tu san » thu san, tu ban, tu can

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 (tu san)) ky tang xa hoi. hieu qua cao luc van han ((tai cua) or (than cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (tu san)) ky tang xa hoi. hieu qua cao luc van han ((tai cua) OR (than cua)) tre.
• Adding a wildcard symbol may retrieve word variants: ((te sach) or (tu san)) ky tang xa hoi. hieu qua cao luc van han ((tai cua) or (than cua)) tre*.