Perhaps you should try some spelling variations:
cau tren » cu tren, dau tren, ca tren
hieu van » hieu va, thien van, lieu va
thu san » thuy san, thu ban, phu san
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
cam tuc » cam tu, nam thuc, dam thuc
xa hanh » xa thanh, xa khanh, va hanh
thu sac » thu sach, thu xac, thu dac
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: ((thu sac) OR (thu san)) ky lang xa hoi. hieu van ((cam tuc) or (cam xuc)) xa hanh vi cau tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thu sac) OR (thu san)) ky lang xa hoi. hieu van ((cam tuc) OR (cam xuc)) xa hanh vi cau tren*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((thu sac) OR (thu san)) ky lang xa hoi. hieu van ((cam tuc) or (cam xuc)) xa hanh vi cau tren*".