Perhaps you should try some spelling variations:
tham tuc » tham thuc, thai tuc, nham thuc
hanh tai » thanh tai, hang tai, han tai
va hanh » van hanh, va thanh, va danh
cua tre » cua te, cua triet, dua tren
cuu tre » cau tren, cau treo
va tham » van tham, va cham, va thanh
hieu va » lieu va, hieu qua
ky lang » ky dang, ky tang, tay lang
tuc va » thuc va, truc va, tuc xa
te sac » te sach, te cac, te san

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: te sac ((ky lang) OR (ky nang)) xa hoi. hieu va tham tuc va hanh tai ((cua tre) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sac ((ky lang) OR (ky nang)) xa hoi. hieu va tham tuc va hanh tai ((cua tre) OR (cuu tre)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sac ((ky lang) OR (ky nang)) xa hoi. hieu va tham tuc va hanh tai ((cua tre) or (cuu tre))".
• Adding a wildcard symbol may retrieve word variants: te sac ((ky lang) OR (ky nang)) xa hoi. hieu va tham tuc va hanh tai ((cua tre) or (cuu tre))*.