Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
cham xuc » cam xuc, chat xuc, cham soc
hang ca » nang cao, hang tai, hang dau
va hanh » van hanh, va thanh, va danh
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
vi cua » vai cua, di cua
xuc va » duc va, tuc va, luc va
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 (thuat sach)) ly ((hang ca) OR (hang va)) hoi. hieu ve cham xuc va hanh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thu hoach) OR (thuat sach)) ly ((hang ca) OR (hang va)) hoi. hieu ve cham xuc va hanh vi cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((thu hoach) or (thuat sach)) ly ((hang ca) OR (hang va)) hoi. hieu ve cham xuc va hanh vi cua te".
• Adding a wildcard symbol may retrieve word variants: ((thu hoach) or (thuat sach)) ly ((hang ca) OR (hang va)) hoi. hieu ve cham xuc va hanh vi cua te*.