Perhaps you should try some spelling variations:
thien hach » thien thanh, hien hanh
hien bach » vien bach, hien hanh, dien sach
va hang » van hang, va nang, va lang
tuoc va » thuoc va, nuoc va, duoc va
tu sach » thu sach, su sach, tu cach
nang ma » tang ma, sang ma, nang cao
te sach » toc sach
cuu tre » cua tre, cau tren, cau treo
ma hoi » mai hoi, xa hoi, ma hoa
va cuu » va cau, va chu, va huu

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) or (te sach)) ky nang ma hoi. dieu ((hien bach) OR (thien hach)) tuoc va hang va cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (te sach)) ky nang ma hoi. dieu ((hien bach) OR (thien hach)) tuoc va hang va cuu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) or (te sach)) ky nang ma hoi. dieu ((hien bach) OR (thien hach)) tuoc va hang va cuu tre".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (te sach)) ky nang ma hoi. dieu ((hien bach) OR (thien hach)) tuoc va hang va cuu tre*.