Perhaps you should try some spelling variations:
duoc van » duoc va, duc van, duoc ban
hanh tai » thanh tai, hang tai, han tai
hanh lai » hanh lam, thanh lap, thanh loi
tu sach » thu sach, su sach, te sach
ve chat » va chat, van chat
ve chet » ve che, se chet
nang ma » tang ma, sang ma, nang cao
y nang » ky nang, ly nang, v nang
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: tu sach y nang ma hoa. hieu ((ve chet) OR (ve chat)) duoc van ((hanh lai) or (hanh tai)) cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y nang ma hoa. hieu ((ve chet) OR (ve chat)) duoc van ((hanh lai) OR (hanh tai)) cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach y nang ma hoa. hieu ((ve chet) OR (ve chat)) duoc van ((hanh lai) or (hanh tai)) cua te".
• Adding a wildcard symbol may retrieve word variants: tu sach y nang ma hoa. hieu ((ve chet) OR (ve chat)) duoc van ((hanh lai) or (hanh tai)) cua te*.