Perhaps you should try some spelling variations:
thien van » thi van
thai cua » than cua, tai cuc, tri cua
van nhan » van phan, van thanh, danh nhan
te sach » toc sach
duc van » duc va, duc tan, duc manh
tai cua » tai cuc, tri cua, dai cua
van cau » van dau, van hau, van chat
cau duc » cao duc, cau luc, chu duc
ky tang » ky nang, ky dang, kho tang
ky lang » ky nang, ky dang, tay lang

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 ((ky lang) or (ky tang)) xa hoi. thien van cau duc van nhan ((tai cua) OR (thai cua)) tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((ky lang) OR (ky tang)) xa hoi. thien van cau duc van nhan ((tai cua) OR (thai cua)) tu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((ky lang) or (ky tang)) xa hoi. thien van cau duc van nhan ((tai cua) OR (thai cua)) tu".
• Adding a wildcard symbol may retrieve word variants: te sach ((ky lang) or (ky tang)) xa hoi. thien van cau duc van nhan ((tai cua) OR (thai cua)) tu*.