Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
nang cau » nang cao, hang cau, nang dau
minh hai » minh khai, tinh hai, manh hai
sach ty » sach y, sach tu, sach thu
ty nang » ky nang, ty xang, ty hang
xuc van » duc van, luc van, vuc van
cua tu » cua tuc, cua cu, cua te
cua su » qua su

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach ty nang cau hoi. ((hieu qua) or (lieu va)) cam xuc van minh hai ((cua tu) OR (cua su))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ty nang cau hoi. ((hieu qua) OR (lieu va)) cam xuc van minh hai ((cua tu) OR (cua su)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach ty nang cau hoi. ((hieu qua) or (lieu va)) cam xuc van minh hai ((cua tu) OR (cua su))".
• Adding a wildcard symbol may retrieve word variants: thu sach ty nang cau hoi. ((hieu qua) or (lieu va)) cam xuc van minh hai ((cua tu) OR (cua su))*.