Perhaps you should try some spelling variations:
thanh vinh » thanh binh, thanh tinh, than kinh
cau tren » cu tren, dau tren, ca tren
vinh cau » sinh cau, vinh cuu, minh cau
luoc gia » quoc gia, luong gia, nuoc giai
luc gia » duc gia, quoc gia, duc giao
te sach » toc sach
sach ty » sach y, sach tu, sach thu
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
ty nang » ky nang, ty xang, ty hang

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 ty nang xa hoi. ((hieu ve) or (lieu va)) cau ((luc gia) OR (luoc gia)) thanh vinh cau tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty nang xa hoi. ((hieu ve) OR (lieu va)) cau ((luc gia) OR (luoc gia)) thanh vinh cau tren.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ty nang xa hoi. ((hieu ve) or (lieu va)) cau ((luc gia) OR (luoc gia)) thanh vinh cau tren".
• Adding a wildcard symbol may retrieve word variants: te sach ty nang xa hoi. ((hieu ve) or (lieu va)) cau ((luc gia) OR (luoc gia)) thanh vinh cau tren*.