Perhaps you should try some spelling variations:
trinh giang » trinh giao, trinh giai, trinh tieng
may trinh » may tinh, lap trinh, quy trinh
giang cua » gian cua, giang qua, giang xua
te sach » toc sach
cam duc » cam xuc, cao duc, pham duc
duc may » duc mau, duc man, duc manh
y nang » ky nang, ly nang, v nang
va cam » va cham, va cac, va cao
cua te » cua tu
x hoi » o hoi, 5 hoi

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 ((((x hoi) OR (xa hoi))) or (x ho)). lieu va cam duc may trinh giang cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y nang ((((x hoi) OR (xa hoi))) OR (x ho)). lieu va cam duc may trinh giang cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y nang ((((x hoi) OR (xa hoi))) or (x ho)). lieu va cam duc may trinh giang cua te".
• Adding a wildcard symbol may retrieve word variants: te sach y nang ((((x hoi) OR (xa hoi))) or (x ho)). lieu va cam duc may trinh giang cua te*.