Perhaps you should try some spelling variations:
tinh vai » tinh va, tinh hai, tinh bai
cau tren » cu tren, dau tren, ca tren
te sach » toc sach
sach ky » sac ky, sach y, sach ty
van cam » van nam, van cau, van dam
van lam » van nam
va tinh » may tinh
vai cau » va cau, van cau, vai cac
x hoi » xa hoi, o hoi, x ho

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 ky nang x hoi. hieu ((van cam) OR (van lam)) tu va tinh vai cau tren~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky nang x hoi. hieu ((van cam) OR (van lam)) tu va tinh vai cau tren".
• Adding a wildcard symbol may retrieve word variants: te sach ky nang x hoi. hieu ((van cam) OR (van lam)) tu va tinh vai cau tren*.