Perhaps you should try some spelling variations:
thien van » thi van
hieu van » hieu va, lieu va, hieu ve
thanh vi » hanh vi, thanh va, thanh ve
cau tren » cu tren, dau tren, ca tren
te sach » toc sach
ly nang » ky nang, ly hang, ly vang
cam duc » cam xuc, cao duc, pham duc
duc gia » quoc gia
y nang » ky nang, v nang, may nang
vi cau » va cau, ve cau, di cau

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 ((y nang) or (ly nang)) x ho. ((hieu van) OR (thien van)) cam duc gia thanh vi cau tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((y nang) OR (ly nang)) x ho. ((hieu van) OR (thien van)) cam duc gia thanh vi cau tren.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((y nang) or (ly nang)) x ho. ((hieu van) OR (thien van)) cam duc gia thanh vi cau tren".
• Adding a wildcard symbol may retrieve word variants: te sach ((y nang) or (ly nang)) x ho. ((hieu van) OR (thien van)) cam duc gia thanh vi cau tren*.