Perhaps you should try some spelling variations:
danh vai » danh sai, danh va, doanh van
hieu ve » hieu va, hieu van
vai cua » dai cua, hai cua, lai cua
va danh » va dinh, va dan, va hanh
cam tuc » cam xuc, cam tu, nam thuc
ly nang » ky nang, ly hang, ly vang
tu sach » thu sach, su sach, te sach
ve cam » ve cham, ve cac, va cam
tuc va » thuc va, truc va, tuc xa
y nang » ky nang, v nang, may 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: ((thu hoach) or (tu sach)) ((y nang) OR (ly nang)) ma hoa. hieu ve cam tuc va danh vai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thu hoach) OR (tu sach)) ((y nang) OR (ly nang)) ma hoa. hieu ve cam tuc va danh vai cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((thu hoach) or (tu sach)) ((y nang) OR (ly nang)) ma hoa. hieu ve cam tuc va danh vai cua te".
• Adding a wildcard symbol may retrieve word variants: ((thu hoach) or (tu sach)) ((y nang) OR (ly nang)) ma hoa. hieu ve cam tuc va danh vai cua te*.