Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
su sach » so sach, vu sach
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
cam tuc » cam xuc, cam tu, nam thuc
ba bang » va bang, ba bong, ba lang
doi cua » hoi cua
ve cam » ve cham, ve cac, va cam
tuc ba » tuc bao, tuc xa, tuc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((su sach) or (thuat sach)) ky nang xa hoi. hieu ve cam tuc ba bang ((doi cua) OR (dai cua)) tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (thuat sach)) ky nang xa hoi. hieu ve cam tuc ba bang ((doi cua) OR (dai cua)) tu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) or (thuat sach)) ky nang xa hoi. hieu ve cam tuc ba bang ((doi cua) OR (dai cua)) tu".
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (thuat sach)) ky nang xa hoi. hieu ve cam tuc ba bang ((doi cua) OR (dai cua)) tu*.