Perhaps you should try some spelling variations:
van tuan » van quan, van ban, anh tuan
van tham » van thanh, van chat, van tai
hanh hai » thanh hai, nhanh hai, hang hai
cua tre » cuu tre, cua triet, dua tren
va hanh » van hanh, va thanh, va danh
te sach » toc sach
sach ty » sach y, sach tu, sach thu
cao hoi » cau hoi, co hoi, cao hoc
ty nang » ky nang, ty xang, ty hang
xuc va » duc va, tuc va, luc va
cua te » cua tu

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 cao hoi. hieu ((van tham) or (van tuan)) xuc va hanh hai ((cua tre) OR (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty nang cao hoi. hieu ((van tham) OR (van tuan)) xuc va hanh hai ((cua tre) OR (cua te)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ty nang cao hoi. hieu ((van tham) or (van tuan)) xuc va hanh hai ((cua tre) OR (cua te))".
• Adding a wildcard symbol may retrieve word variants: te sach ty nang cao hoi. hieu ((van tham) or (van tuan)) xuc va hanh hai ((cua tre) OR (cua te))*.